I'd like to say that jedi knight is better. i look at the jedi with more... noble, but sith warrior has alot of fun killing people. since ur looking for story i'd give u some hints. Jedi knight: u defeat the empiror, but alot of the time u have to do stuff like this. Cpt whtever " we made a devise that the siths captured and we need u to get it back or destroy it" Warrior u get to have fun doing whtever u want, but jedi defeats the empiror, and ur only the wrath.

if ur looking to kick the crap of some guys, sith is the way to do it.

depends on the story bro