chanters, when geared like crazy, have pretty good survivability. tons of kd, crit. recovery spell every 10s. getting there isn't so easy.
nothing really compares to ranger's burst damage though.
glad has good sustained dps, and it's pretty beasty if you're not a fuckwit.
sin's good sustained dps, soso burst, but they kinda got jewed over by the last patch. a squishy glad basically.
sm's good for solo but, again, requires you not to be a fuckwit. too much to do to maximize dps. you're also squishy unless armor spirit is up.