...tanks are one of the strongest PvP group of classes. There's a reason there's so many tanks in PvP. Not that the three might be equal in all ways but they don't need buffs.

I've also seen living dead used effectively. Charge into an enemy zerg and deny them cap with the aoe spam (bonus points for benediction just as they run out).

PVP's flagging of characters as in combat could be reworked as a whole. Not sure exactly how it's done but it does seem to linger...