not so much rigged as
f'ed up judging. Bonnar got beat by Jardine, Hoger beat Rashad Evans, forrest got robbed. UFC is making headlines in respectable news venues and couldn't be more stupid if they were tampering with the matches.
I don't see how judges can score rounds for a guy who can only takedown and keepdown. Koscheck doesn't do anything other than NCAA double legs. His fights are boring!
The other thing that allows for the questions of cheating is the fact that the UFC hasn't done anything regarding publicized rankings. Nate Quarry for the RFranklin fight after 1-2 fights? JRiggs for a title fight? And how does Royce get an immediate title shot when he's not been in the UFC for 5+ years? When was the last time a Gracie won a competition (UFC or Pride?).