Cro Cop was dominated in that fight and I really don't see Cro Cop beating Fedor in a rematch. I stated this in anoher thread but I will state it again.
The thing about Fedor is that he has defeated the top ranked fighters in each of their disciplines. Take Nog who is the #2 ranked HW in the world and the #1 ranked grappler in the world, Fedor Dominated him x2. Cro Cop the best HW striker in the world of MMA and Fedor dominated him. Then Take Herring, Coleman and Randleman 3 world class wrestlers and Fedor Dominated all 3 of them via tko, armbar and kimura.
He also put on a clinic in his fight against Fujita after being stuck with a huge right hand that cut him and dazed him. Fedor regained composure about 40 seconds later after hanging on wiht everything he had and then ended the fight with one of the most impressive and devistating finishes I have seen in MMA. It was a nasty liver kick wiht the left leg followed by a huge right hand and left hand which dropped Fujita, then a rear naked choke and at the end you could see Fujita and he looked really fucked up. The doctors were attending to him for a good few minutes after the fight was over, Fujita was just layed out on the floor.
With all of that being said, the only fighter IMO that has a legit shot at possibly beating him is Barnett, he is in phenominal shape right now, certainly the best of his career as he has always had that baby fat but he is ripped now and the way he dominated Hunt was very impressive. He could cause some problems for Fedor and I picked him to win the OWGP.
However I do not think anyone at the moment will beat Fedor, certainly many fighters posess the skills needed to do so but Fedor is too intelligent of a fighter backed with his ridiculous skills, it is going to be vrey very hard for anyone to beat him unless it is a lucky punch or kick (not really lucky if they are world class fighters but crtainly some luck as his record speaks for itself and has been faced wiht such fighters time and time again so I would have to say it would be somewhat of a lucky win if anyone beats him) however if barnett beats him it would not be by luck IMO as it would not be a 1 punch or kick KO as that is not Barnetts game so if he beats Fedor via sub or GNP stoppage it would be more so validated than a flash KO.