I've given all but Raidou a try. I played them well enough to at least get good combos, and playstyle with that character. The reason was to know the most used strings and combos in order to get more holds.
LOL@Sarah being one of the more balanced females. Guess you haven't fought GenFu, Rig, Zack, Hayate, or Brad Wong yet. Out of curiosity is this based on online or offline play?
Hayate is pretty fuckin cheesy. Mainly online but I try and play offline with some friends. Also Gen Fu. Don't really have too many problems with the others. Maybe Brad but there isn't too many of those.