AoE group is more about skill, particularly the puller, than the group makeup. Puller needs to be using showeq and know how far the mobs will tether to them before going back to their spawn point.
1 wiz, 1 cleric, and 1 mage or druid was plenty dps.
2 enchanters is not optional due to stuns, you need exactly 2, 3 doesnt add anything assuming your 2 are setup correctly. You want them facing towards a wall, pushing towards a single point. Think in the shape of a V.
Any class can pull but cleric, sk, paladin, and bard are the best. I maxed AA as an sk pulling the deep over the course of 2 bonus xp weekends, was easy. Get some out of group boxes and you can do 125+ in a single 4 hour pot + bonus xp