I'll be honest, when it comes to rooting for a fighter, it all comes down to personality.
I like fighters who are sportsmen, friendly, and most of all humble.
I don't even enjoy watching the mean, rude people fight. I don't even like to see them be beat up, that's not the point of this. It's a darn sport, not a chance to legally pound somebody into the ground to release your own frustrations.
That said, I've really enjoyed watching the machida fights. I want to see someone take him on and force him to show off the variety of training he has had throughout his life.
I don't have a favorite fighter, everything is way too overblown by the media and promotion of the UFC for me to really know these guys well enough to have an opinion on a 'favorite'. All I know is that I enjoy watching two guys give each other respect and compete in one of the most difficult sports in the world.
P.S. Chuck Liddell was apparently on Dancing with the Stars. Wish I'd caught that before now.. lol