I think it's something like...
Sage has the best single target burst
Smuggler has better steady long term healing with proper energy management
Trooper has best aoe
They're all very comparable though. Just play what you like. In this game, skill > gear > class, tbh.
trooper the best aoe?give me your herb plz.
trooper aoe heal for 2k to 3 people when sage aoe heal to unlimited people by 550x10=5500
maths are easy
sage has the best single,aoe heal and preentive heals.
smuggler has better hot
trooper has nothing