The Smack-fu Master is a good all-rounder. Select this if nothing else appeals.
The Deadly Assassin is powerful when she gets the drop on her foes, but tends to accidentally kill them. This will earn respect, but is bad for popularity.
The Unstoppable Brawler loves fighting groups, the more the merrier.
The Fearsome Grappler gains bonuses in single combat, ideal for combat against bosses.