A contest.
I'm a 5+ yr GW1 player and an ex-GW2 WvW Guardian Commander (ex cuz I got bored within 2yrs no matter how many PC xpacs they make!). Anyways, to the point. I've struggled mightily into devising an all (HERO) melee team. A task which I've long wanted to do and tried many variations. While each melee prof has a moderate decent self-heal, it's not quite enough at least combos I've tried. I've tried Rangers, Dervs (whom I though might), including transforming Raza into my 4th Derv hero), Warriors (who I also thought might make it) and Sins. Did Anet honestly screw the melee class into second place forever? Perhaps.
Here's my offer. Come up with a hero melee only team that has made it through let's say...Rilohn Refuge. A typical but representative zone. Oh, my only stipulation in HM...heck I've made it far in normal...lol.

**I wanted to give an honest ty shout out to Marty Silverblade, who has kept these forums strong...forever.

Mandragora Screamer
**Update to questions asked:
1 - Meant The Floodplain of Mahnkelon/Map zone, not Rilohn mission. Reason being is all the varied bosses who will provide a unique challenge. This is not the hardest zone in HM, but representative due to varied bosses. The team should be capable of vanq.
2 - Merc heroes from my perspective are allowed.
3 - Cons, no cons/candy. I have several teams that can vanq/master missions w/o these. The goal is to see the strongest stand alone melee.
4 - Heros/mercs each must participate in melee combat action; i.e., you can use a combat Mes, Rit, etc.
5 - Any combat enhancing spells/chants are acceptable such as Spirit's Strength
What I'm looking for is the team than can optimise dps and healing, those birds in that zone seem to have an infinite supply of mana and spam glimmer of hope for days, so your DSP much reach a certain breakpoint.
Contest will run through 20 Sep when winning build will be posted. It will take me some time to try each team.