Hi mates, just needed to reply on this, since i have many times asked myself the same question

I have Pally, Priest, 2 x firemage, firelock setup. I AOE through heroic ramp, botanica, UB, SL and for MT i havent managed to AOE there yet (normal is fine)

You get massive AOE, u get CC all if needed (MT), and u get nice buffs, but the burst dmg is the best. I have 3x shammies comming up ( at 42 ftm) for PvP. When i do quests, dailys or grind, i ride around and just AoE everything down.

Hope you have a great time with your team. nomatter what your setup is