It's a Wipe! strategy update: Troll City.
For this fight, all three of these mobs can rez the other two, so it's important to kill all three mobs at around the same time. I put ranged DPS on the High Tiger Priest, and melee DPS on the friar and then the bishop, and then rely upon the mage to take them all out with her group nukes.
I have two of my three wizards here for this fight, but they don't get along well with each other, and they are all having time outs in my current raid group. One of them has asked to raid again, so he'll be coming back. I've found out from the forums that wizards are temperamental and will rage quit if you don't coddle them enough. I think the smart move, going forward, would be to play a wizard (I play here a rogue) so that you'll always have at least one who can't quit.
I have two tanks, but I swap them out so that they don't get upset when I am building one up with raid loot.