Kimbo seems like he has matured a lot as a person . He seems to be a little more refined in what he says, not so brash anymore, more professional. I think he learned A LOT from his loss to Petrazelli, training with Ruten and all that fall out .. and will grow from it. I don't know if he is going to win TUF 10 or not but he is definitely a "tough" guy. He would absolutely rape Petrazelli in a street fight, brawl etc... he just caught, everybody does sooner or later.
I think Brett Rogers would put a whuppin on Kimbo though at this point, I think Kimbo would try and trade with Rogers and he would get put to sleep. If Kimbo was 20 yrs. old with his raw talent I think he could have been a major force in MMA, I think he missed making it big by 10 yrs. or so - too bad for the guy.