I've seen some good stuff about sabo, I have marksman, ranger, bard, assassin, sabo, riftstalker, and bladedancer so far..

For damage, sabo or possibly the burst assn gives, but I personally love bard for the survivability and especially in pvp.

Bard is a support healer/buffer with some good pvp tools.

Assassin is a good overall rogue.

Riftstalker got more passive stuff, and is the tanking soul of a rogue.

Nightblade is a good pvp soul, also a good sub soul for the 15%'s at start of tree.

Ranger/MM are also good, and high in dmg.

Saboteur got nice burst, and a special playstyle. Sick spike dmg, but thats about it.

don t even touch melee rogues at low lvl. Go mmranger or sab (pref sab.)

lvled as assassin for 1-50, worked awesome. Had RIftstalker for tanking instances, and a 3rd soul for ranged dps on certain bosses.