Right now pvp is a little bit unbalanced, the best healers are sage/sorc by far the best tanks are juggs and best dps are burst dps specs, alot of comps in ranked that i have noticed are burst comps with a tank and a sorc healer, the tank just needs to know what to do but juggs seem to do the most damage. i personally like pt tank for the stuns and the aoe damage it can provide, also shadow/sin tanks are really popular right now they can do some nasty damage, ive also noticed that op healers and merc healers are complete garbage compared to a sorc/sage