Rashad needs to pick a weight class and stick with it if he wants to be in title contention. Right now he's undefeated but his competition has been up-and-down. A win over Bonnar right now isn't such a big deal considering the guy really hasn't improved since the UFN bout with Griffin.
Sanchez is the best fighter from the show so far. He is rapidly gaining ground in his class. I wouldn't count him out against any of the 170's. He's in a tough spot because guys like Penn and St. Pierre have already paid their dues. Sanchez and Parisian are stuck on the second tier of the WWs with no sign of a title shot in sight any time soon.
One of the better fighters, in time, might be Nick Diaz. After a few PPV losses he's starting to show a lot of improvement.
Griffin, Bisping, Hamill... lots of quality guys coming from the show. We just don't get to see them fight often enough!