Best 3-Man Group for Farming/Dungeon/Group Quests?

[Apatheist]

two tanks

It's really only one tank because of the way threat works. If you're fighting a boss and your voidwalker dies, the threat it had generated transfers to the warlock so the boss will attack the warlock, rather than switching to the second voidwalker as you might think it would.

Priest + warlocks is a strong group in PvE and PvP but without /focus I'm not sure how we'd manage a pet group. You need some way of managing individual targets.

Actually, it just occurred to me that you could keybind 4 individual assist keys to acquire separate CC/pet targets (or one key on round robin) and then use @party1target for your DPS rotation. That could work.