I like holy veil, both as cover, and as hex remover.
I also use watchful spirit, for a bit of health regen, and the fact that if it gets stripped, it heals a fair whack too. I also use it as healing when I get bored. but that's not recommended.
For SF, a build I use
blessed sig,
mantra of insc (coz I'm lazy and sometimes 'forget')
Life Barrier
Life Bond
Watchful spirit
Life Attunement
Holy veil
Balth spirit
if you want to max out the bond attributes, and dont feel so lazy,
blessed sig,
signet of devotion / mend ailement
Life Barrier
Life Bond
Watchful spirit
Life Attunement
Holy veil
Balth spirit
for the sorrow furnace, put bonds on the tank in that order.
Also, it's not uncommon for the tank to bring succor and give me an extra energy pip.
for grenth footprint, it's life barrier / bond all round, and a balthazar spirit on myself. For a 5 man farming team, that gives -5 degen, -4 is you have succor on you, or the healer brings peace and harmony (unlikely). 9 bonds are easy to sustain, even between fights, with maxed DF (blessed sign gives back 24 energy points each time). Having good DF attributes if vital, probably more important than having max prot attributes.
If you have a necro along for the ride, blood ritual will be helpful for starting up the bonds. Life barrier costs 15, and it's slow to reload, so starting the bonds in grenth footprint can take a while. BR speed things up a bit, even at low Blood attributes. It can also help if you find yourself in a tight spot, energy wise.
I also recommend others in the team to bring essence bond (for the nuker for example), since you can only put one essence bond on the tank.
for babysitting lower levels through missions, I take
blessed sig,
signet of devotion
rev fortune
restore condition
Balth spirit
Vital Blessing
Life Bond
Holy veil
with maxed out prot and DF attributes (two sup runes + prot / DF head gear).
for condition heavy missions,
blessed sig,
signet of devotion
martyr
purge condition / mend ailment
Balth spirit
Vital Blessing
Life Bond
Holy veil
and yes, I do use vital blessing, I never had any problem with it.
these two builds are also used in PvP (HoH), or so I've been told. Vital blessing apparently is used to assist the infuser against spikes, the bond, for physical damage (Iway, barrage). But I dont do much PvP, so I can't back my claims with hard physical evidence
Of course, whatever the game, bonders have to stay way back, out of the fight. All those bonds make them very soft, and if the bonder dies, it affects the whole team's balance.