With RAF, I've been able to level up 4 teams, just started my fifth last night

First team: Horde Paly + Sham (2) + Druid

Second team: Horde Paly + Mage (2) + Priest

Third team: Alliance Shammy (4)

Forth team: Horde Shammy (2) + Druid + Rogue (on same server as second team)

Fifth and current team: Alliance Paly + Mage (2) + Druid (same server as third team)

I wanted to be sure that I had a tank on each server I leveled up a RAF team, just in case. If I have enough time by Dec 8th, I may work on a warlock and/or hunter team but tanks were definitely a priority, I'll probably gift levels to a warrior as well.