So, my guild went with the following composition for the fight:
Healers (3): Druid, Disc Priest, Holy Priest.
DPS: Death Knight, Hunter, Shadow Priest, Warlock, Shamman.
The tanks and 2 of the 3 healers had BIS gear (this Disc priest had mostly 251 and 264 gear) And from the DPS, all had BiS gear.
My main question is: Would there be a more optimal composition for these heroic LK 10 attempts? Are Ret Paladins needed for a more successful chance at killing Arthas? If you guys have killed him, what comp did you find to be most effective? Yall's advice is greatly appreciated.
Resto druids don't have much of a place in the lk fight, and holy priest don't really have much of a place in icc, however they are more then capable of healing it. If you really wanted to have a *perfect* group ditch them and grab a holy paladin instead.