AOE-Damage compare 4 Locks+Priest vs. 3 Locks + Pala + Priest

[Madsage]

DPS will not be an issue with any of these team, team with 3 warlocks will be safer to play in dungeons and have an easier time with boss fights while all ranged team will be better for outdoor play, it depends how much do you want do grind dungeons and engage in pvp, but 4 warlocks work better on Horde side since you can cannibalize and conserve a lot of your priests's mana while blessing of salvation and aoe tanking is amazing on alliance side.