One or two guys may surprise you. I doubt it, but it's possible. The ultimate fighter tends to make guys improve because they get in good training and they start to take their game more seriously because of this once in a life time opportunity.
I've only watched a few episodes myself because I lost my provider.
Psalm 30:5 "For his anger endureth but a moment; in his favour is life: weeping may endure for a night, but joy cometh in the morning."
Top 3 Favorite Fighters
1. Chuck "The Iceman" Liddell
2. Glover Teixeira
3. Diego Sanchez