A fight I would probably wanna see more than any fight is Chuck VS Cro Cop. I think they both might walk around at the same weight. That could be an alltime classic bout.
That would be like seeing a wild badger against a pet rabbit. I would want to see it too though, just to see Chuck flat on his ass.
And BJ Penn is by far the best fighter at 170. The best. Unfortunately, he does not actually give enough of a damn to bother training and other unimportant things like that.
He's like the Derrick Coleman of MMA, I hope he eventually takes it seriously.