Alright so what ive come down to is

1. Paladin (tank only)
2. Paladin (tank - *Holy or Ret*)
3. Disc / Holy Priest
4. Restoration Shaman
5. Priest (shadow / Holy)
6. Shaman (Elemental)
7. Boomkin
8. Shaman (Elemental)
9. Mage
10. Warlock

I wouldn't mind doing dual priest healers, and im considering it. That means my warlock has to be destruction to provide replenishment. That's one of the big things im looking at is getting the max amount of buffs I can to, using the imp would also give more group hp's.