Anyhow, I felt that since everyone else was collecting useful data (skills, mapping, armor...), I'd do a little reporting on something that most haven't thought to go in-depth about, but which a lot of people have had opinions on (that, and I had to spend part of the weekend away from GW but still bored and in front of a computer). Feel free to voice those views here, and we'll compile a report card for these little squishies. I'll edit as time permits and as good points are added to the discussion.
All in all, some interesting variety, some good points, some bad. The AI will never be perfect, nor will it ever be pitiful. One major improvement: the healers don't all try to rez the same character at the same time (the rezzing procedure is not without its flaws, but it's better).
I wasn't able to determine all the henchies' skills. For most, I got a list of about 5-7 (Sheena was the only one that I detected fewer, at 4); let me know if I missed any, and I'll update.
In giving the henchies a mark from 1-10, it has to be kept in mind that nothing will be completely awful and nothing will ever be perfect.
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Aeson (Rt Spirit Henchman; Luxon) -- (Union, Recuperation, Spirit Light, Displacement, Flesh of My Flesh). During the Great Monk Strike, there were complainers saying, "wait until the Ritualists are here -- we won't need monks, then." Well, monks, you're not obsolete. Ritualists are more than "spirit Rangers with a rez." Of course, with Aeson, you wouldn't know it.
Sister Mercy's grade: 5
Average Guru grade: 6.33
Aidan (R Archer Henchman; Neutral, Marketplace to some Kurzik regions) -- (Kindle Arrows, Dual Shot, Power Shot, Practiced Stance, Troll Unguent, Resurrection Signet). I've never understood the blue superhero tights. No fashion sense at all. However, Aidan (like Reyna) has the best survival skills in the game, does not aggro, and has better rez instincts, even if he can only do that once (barring a signet recharge).
Sister Mercy's grade: 7
Average Guru grade: 6.25
Alesia Baptiste (Mo Healer Henchman; GW:P) -- (Orison of Healing, Healing Breeze, Heal Other, Healing Touch, Word of Healing, Restore Life). Alesia has a bad tendency to try to tank, rather than focus heal. I can understand that monks tend to be early targets even with AI baddies, and it's necessary to defend herself, but she actually gets unnecessarily aggressive and is known to aggro even with the most cautious party or solo player.
Sister Mercy's grade: 5
Average Guru grade: 5
Argo (E Mage Henchman; Luxon) -- (Fireball, Meteor, Fire Attunement, Bed of Coals, Resurrection Signet). Now here is what still works for Fire Elementalists. Sadly, the skillset doesn't have much left that suffers from the AoE nerf (see Cynn, below), but these skills manage fairly well, and do some decent damage.
Sister Mercy's grade: 6
Average Guru grade: 6.5
Aurora (R Longbow Henchman; Luxon) -- (Favorable Winds, Barrage, Dual Shot, Hunter's Shot, Troll Unguent, Resurrection Signet). She would almost rank up there with Aidan if not for her obsessive-compulsive fixation on Favorable Winds. As soon as it ends she recasts, which would be fine except that she tries to cast it in the middle of battle and is usually interrupted -- not to mention giving the baddies a lot of opportunity to put damage on her.
Sister Mercy's grade: 5
Average Guru grade: 4.5
Brutus (N Blood Henchman; Wallow; Kurzik) -- (Icy Veins, Vampiric Swarm, Vampiric Gaze, Rising Bile, Wallow's Bite, Resurrection Signet). He's ugly and his mother dresses him funny. Or would, if he wore clothes (Wallows not having opposable thumbs and all). I love the idea of critter henchies, even if we don't know yet how sentient he's supposed to be and what he's doing hiring himself out as a mercenary. Some nice Blood Magic damage here, although there's none of the team support that he'd be capable of providing, like Blood Ritual at least. Having him cast Well of Blood might be too overpowering, but these skills are also a touch on the weak side.
Sister Mercy's grade: 6
Average Guru grade: 5.25
Claude (N Cultist Henchman; GW:P) -- (Shadow Strike, Vampiric Gaze, Blood Ritual, Deathly Swarm, Resurrection Signet). Almost as good as Eve, although he seems a little underpowered. He could also afford to be a little more intuitive with the Blood Ritual.
Sister Mercy's grade: 6
Average Guru grade: 6
Cynn (E Mage Henchman; Neutral, Marketplace to some Kurzik regions) -- (Aura Of Restoration, Fireball, Fire Storm, Mind Burn, Incendiary Bonds, Fire Attunement, Resurrection Signet). Cynn suffered tremendously from the Great Ele Nerf, and was never adjusted to compensate. Consequently, whenever she casts any of her AoEs (Fire Storm and Incendiary Bonds), it causes the baddies to scatter like children when it's time to explain why someone dipped little Tricia's pigtails in ink. When she manages to hit someone she does good damage, but right now the AoE nerf means that bringing her along will cause chaos to ensue.
Sister Mercy's grade: 2
Average Guru grade: 4
Daeman (R Interrupt Henchman; Luxon) -- (Choking Gas, Distracting Shot, Broad Head Arrow, Savage Shot, Troll Unguent, Resurrection Signet). Initially, my thought was that Daeman was overpowered. The missions in the Luxon regions with him were almost a cakewalk compared to the Kurzik ones. But without Mesmers in the party, it balances out nicely. Daeman follows targets, has a good variety of skills, and is great for foiling both casters and barbarians.
Sister Mercy's grade: 8
Average Guru grade: 9.25
Danika (Mo Healer Henchman; Kurzik) -- (Purge Signet, Orison of Healing, Word of Healing, Healing Breeze, Healing Touch, Resurrection Chant). Such a beautiful dress. If the gothic trappings of House zu Heltzer and region weren't enough to win me over, that dress would do it. Hopefully, there's necro armor somewhere that can look as elegant. On the other hand, she's Alesia repackaged. She has no Smiting skills, but she wants to jump in and beat people up with her staff, before realizing that she should dispense some healing. But to be fair, I was getting by fine with the heals she gave, and if she was healing every booboo, she'd be somewhat overpowered. Purge Signet doesn't help, but I'm going to stay middle of the road. Maybe it's the dress.
Sister Mercy's grade: 5
Average Guru grade: 5.25
Devona (W Fighter Henchman; Neutral, Marketplace to some Kurzik regions) -- (Charge, Irresistable Blow, Healing Signet, Mighty Blow, Counter Blow, Resurrection Signet). Talk about dedication. She follows targets expertly, and doesn't scatter like an idiot in AoE. She could afford to step outside the AoE without panicking (they all could), but she knows how to follow orders, and won't aggro unless I send her somewhere that will cause her to do so.
Sister Mercy's grade: 7
Average Guru grade: 7.5
Dunham (Me Enchanter Henchman; GW:P) -- (Distortion, Empathy, Imagined Burden, Shatter Hex, Drain Enchantment, Resurrection Signet). Not too bad in foiling casters, but is always the first to drop in battle.
Sister Mercy's grade: 6
Average Guru grade: 6
Erys Vasburg (Me Domination Henchman; Kurzik) -- (Leech Signet, Empathy, Cry of Frustration, Power Leech, Resurrection Signet). Mesmers still get the short end of the stick. But does he complain? Not a word. Good caster foiling, and a valuable ally, even if you don't notice what it is that he's doing.
Sister Mercy's grade: 6
Average Guru grade: 7.25
Eve (N Cultist Henchman; Neutral, Marketplace to some Kurzik and Luxon regions) -- (Blood Ritual, Shadow Strike, Vampiric Gaze, Grenth's Balance, Deathly Swarm, Resurrection Signet). People are just figuring out how valuable a team support she is. She could afford to be a little smarter with the Blood Ritual, but she's a Nec who can cast, rather than tank.
Sister Mercy's grade: 7
Average Guru grade: 7.33
Jamei (Mo Healer Henchman; Neutral, Marketplace to some Kurzik regions) -- (Purge Signet, Word Of Healing, Orison of Healing, Healing Breeze, Healing Touch, Resurrection Chant). Jamei's quick with condition removal, which would be good if this wasn't Purge Signet, which kills the energy. Worse, other than PS, Jamei really doesn't seem to cast much of anything at all. You can blame that on the PS, but at least Danika and Sister Tai do something.
Sister Mercy's grade: 3
Average Guru grade: 4
Kai Ying (E Earth Henchman; Luxon) -- (Earth Attunement, Stone Daggers, Ward Against Melee, Aura Of Restoration, Resurrection Signet). Earth Elementals have a lot of potential, either for taking damage (Obsidian Flesh, etc.) or with the new skills, dealing it (Churning Earth, which is in the league of Maelstrom, but at risk of being somewhat overpowered -- Earth Eles are the wave of the future). Kai Ying has neither.
Sister Mercy's grade: 5
Average Guru grade: 6
Lina Esrevni (Mo Protection Henchman; GW:P) -- (Aegis, Protective Spirit, Reversal of Fortune, Shield of Regeneration, Restore Life). Lina still gets my top monk henchie grade. Less prone to aggro or tank, her indirect team support does as much or more for the team than the healer. She's still bad in the running out to rez or not being able to make up her mind category, but gets the job done.
Sister Mercy's grade: 7
Average Guru grade: 7
Little Thom (W Brawler Henchman; GW:P) -- (Sprint/Charge, Wild Blow, Swift Chop, Executioner's Strike, Healing Signet, Resurrection Signet). A little more capable than Stefan and with a little more damage dealing, but occasionally bad on following targets.
Sister Mercy's grade: 7
Average Guru grade: 7
Lo Sha (Me Illusion Henchman; Neutral, Marketplace to some Luxon regions) -- (Hex Eater Signet, Clumsiness, Arcane Conundrum, Conjure Phantasm, Resurrection Signet). I'm probably a bit biased, because during the whole time I was leveling my Mesmer from 1 to 18, I was using this build with mission-driven variations (and minus Hex Eater Signet, of course, with a few Inspiration skills in the empty slots). It's very effective, until you get to the higher levels (Conjure Nightmare might give Illusion Magic a bit more punch, now, if you can weather the spell cost).
Sister Mercy's grade: 7
Average Guru grade: 6.67
Lukas (W Guardian Henchman; Kurzik) -- (Protector's Stance, Hamstring, Healing Signet, Dragon Slash, Resurrection Signet). He might very well have the same AI as Devona. Good at following targets, great level of health.
Sister Mercy's grade: 7
Average Guru grade: 6.75
Mhenlo (Mo Healer Henchman; GW:P) -- (Orison of Healing, Word of Healing, Healing Breeze, Healing Touch, Restore Life). Is it just me, or is Mhenlo even more of a tank and less of a healer than Alesia? You'd think it would be similar AI or better, but he's always running out into the middle of battle and going down fast, while doing less in the way of casting heals. Perhaps it's because he's a title character, but I expected more from him.
Sister Mercy's grade: 4
Average Guru grade: 4
Nika (A Deadly Henchman; Neutral, Marketplace to some Kurzik regions) -- (Unsuspecting Strike, Jungle Strike, Death Blossom, Shadow Refuge, Return, Resurrection Signet). So this is the girl on the box? Not a bad skillset, although I suspect the whole system of skills-in-sequence to have limited what they could do with her.
Sister Mercy's grade: 6
Average Guru grade: 5
Orion Elek (E Mage Henchman; GW:P) -- (Fireball, Fire Storm, Aura of Restoration, Fire Attunement, Incendiary Bonds, Mind Burn, Resurrection Signet). Also suffers from the Great Ele Nerf in that his most effective skills are AoE based and tends to disperse the enemies unpredictably. It was bad enough that the cast times were long enough that his firestorm would come down only after the battle was over.
Sister Mercy's grade: 2
Average Guru grade: 2
Panaku (A Cutthroat Henchman; Neutral, Marketplace to some Luxon regions) -- (Jagged Strike, Entangling Asp, Viper's Defense, Beguiling Haze, Shadow Refuge, Resurrection Signet). He does not follow targets, no matter what you do. Ping it 12 times, and he's still off attacking whoever hits him. Maybe it's the AI's approach to subterfuge, which is actually what an assassin would be best at. As was pointed out, using Viper's Defense to pop in and out of a location has the undesired result of random aggroing nearby mobs. Not so bad in the hands of someone who's watching their aggro circle perhaps, but not so good in the hands of a henchie.
Sister Mercy's grade: 3
Average Guru grade: 3.75
Professor Gai (Rt Spirit Henchman; Neutral, Marketplace to some Kurzik and Luxon regions) -- (Union, Displacement, Recuperation, Spirit Light, Flesh of My Flesh). Same AI as Aeson, with the added misfortune of a name that kiddies are already making ample fun of.
Sister Mercy's grade: 5
Average Guru grade: 6
Redemptor Klaus (Mo Protection Henchman; Kurzik) -- (Reversal of Fortune, Aegis, Draw Conditions, Life Sheath, Resurrection Signet). The trouble with Rebirth is that it wipes your energy every time you use it. The Protection henchies use this liberally in battle, and are little able to do anything else. May have been originally modeled after Lina (the smartest monk in GW), but the AI isn't as consistent with healing, and could use some more effective protective skills. Added: there have been 2 reports of Klaus allowing himself to slowly bleed to death after battle.
Sister Mercy's grade: 4
Average Guru grade: 4.25
Reyna Sandor (R Archer Henchman; GW:P) -- (Kindle Arrows, Power Shot, Dual Shot, Practiced Stance, Troll Unguent, Resurrection Signet). Very similar to Aidan in behavior and skillset, good survival and knowledge of how and when to use her signet.
Sister Mercy's grade: 7
Average Guru grade: 7
Seaguard Eli (W Guardian Henchman; Luxon) -- (Dragon Slash, Protector's Stance, "Shields Up!", Hamstring, Resurrection Signet). Very similar AI to Lukas and Devona. There was one occasion when I couldn't get him to follow a target -- may have been a condition preventing this.
Sister Mercy's grade: 6
Average Guru grade: 6.75
Seaguard Gita (Mo Protection Henchman; Luxon) -- (Draw Conditions, Aegis, Reversal Of Fortune, Life Sheath, Rebirth). Very similar to Redemptor Klaus.
Sister Mercy's grade: 4
Average Guru grade: 4.75
Seaguard Hala (Me Illusion Henchman; Luxon) -- (Conjure Phantasm, Arcane Conundrum, Power Leech, Clumsiness, Hex Eater Signet, Resurrection Signet). Very similar build, behavior and skillset to Lo Sha.
Sister Mercy's grade: 7
Average Guru grade: 6.67
Sheena (N Vile Henchman; Wallow; Kurzik) -- (Putrid Explosion, Lingering Curse, Deathly Swarm, Resurrection Signet). Okay, if you're a Necro who uses corpses, you won't want Sheena (or Su) along on your parties, because she'll use Putrid Explosion on all of them. Otherwise, a fairly good medium-damage build.
Sister Mercy's grade: 6
Average Guru grade: 5.67
Sister Tai (Mo Healer Henchman; Luxon) -- (Purge Signet, Word of Healing, Orison of Healing, Healing Breeze, Healing Touch, Resurrection Chant). For all I know, Sister Tai and Jamei might have the same AI. But Sister Tai seems to cast more spells and play a more active role in the party. Purge Signet and the Rez issues hurt, but like Danika, some improvements might also make her overpowered.
Sister Mercy's grade: 5
Average Guru grade: 4.75
Stefan Baruch (W Fighter Henchman; GW:P) -- (Sprint, Balanced Stance, Power Attack, Griffon's Sweep, Healing Signet, Resurrection Signet). A fairly capable warrior tank, Stefan's pretty good at following targets and holding his own.
Sister Mercy's grade: 6
Average Guru grade: 6
Su (N Vile Henchman; Neutral, Marketplace to some Luxon regions) -- (Deathly Swarm, Lingering Curse, Rising Bile, Putrid Explosion, Resurrection Signet). Not a bad curses Necro. Possibly the same AI and skillset as Sheena?
Sister Mercy's grade: 6
Average Guru grade: 5.67
Talon Silverwing (W Fighter Henchman; Tengu; Luxon) -- (Charge, Tiger Stance, Sun And Moon Slash, Silverwing Slash, Resurrection Signet). A great warrior with some unusual lapses. He'll follow targets reasonably with the occasional exception, and once in awhile he'll be AFK. I love the Tengu idea, I just hate that rare occasion where the battle's taking place and he's standing behind me looking stupid.
Sister Mercy's grade: 5
Average Guru grade: 7
Zho (R Archer Henchman; Neutral, Marketplace to some Luxon regions) -- (Kindle Arrows, Dual Shot, Power Shot, Melandru's Shot, Resurrection Signet). A decent archer along the same lines of Aidan, but minus the stance and with a bit extra power. Not as good at staying alive in sticky situations
Sister Mercy's grade: 6
Average Guru grade: 6
No Smiting Monk henchie.

Sister Mercy's grade: 0
Average Guru grade: 0
More than the expected 4 classes. More, even, than having a single representative from each class.

Sister Mercy's grade: 10
Average Guru grade: 10