I have a fury and my mother has a warden. Wardens have better heals than furies (in fact, so good that they may be due for a nerf), while furies have better dot spells. However, I play main healer in groups easily (though I'm 22, so for all I know, I may be underpowered in the 40s). My mom's warden solos as easily as my fury, even though she has inferior damage spells. Beyond that, furies get buffs that add procs or damage potential, while wardens buff resists. Wardens do cold damage, while furies do magic and heat damage. Oddly enough, wardens have better damage shields -- furies get their last DS at 23.