So I think I'll go with frost for the control but I got to wondering...would a boss a few levels below me, but still able to give xp, be able to be nuked down a good bit with a scorch pyroblast combo coming from all 4 mages? While the control part of frost is great for the trash it doesn't work so well on the bosses.

And I was thinking of using the pally to go shockadin with some extra defence from the prot tree. More so to buy some time for the mages to DPS before I lose aggro and they face tank. More of a DPS race against the boss than a proper tank setup. After I looked at some of Xzin's stuff priest is looking interesting as well, but either way wouldn't have a proper tank.