I like chuck. He is a good fighter but saying you match up good with Fedor. Idk, he was humble enough to say he was perhaps the best fighter alive, which he is. But Chuck... You have fought all your title fights with ground guys, a striker hasnt faced you in some time. Yes, you have a killer sprawl and yes we all know your 1 punch KO power anytime, anywhere. But FEDOR is on another level. Its why he is so respected. ITs why you yourself would say he's the best. I think the best match up for Fedor is Cro Cop. Cro Cop I think is what Chuck never wants to face, he could beat him dont get me wrong, but Mirko is a much better striker and if it was Pride rules, well Chuck would stand little to no chance really.
IMO... Chuck can give a fight to both men, but to be a honest threat... idk... he would need to beat some top strikers and some HW before I would say "OK, Chuck has a shot at beating Fedor or Mirko"
My 12 fighter army is as follows:
Mirko "the man" Filipovic
Fedor and Aleks
Q. Rampage Jackson