This is why I would'nt mind seeing Fedor vs Belfort.

[Tuffnutz]

"To be honest, in terms of his speed at that weight, I honestly don't know if being heavier is an advantage with a fighter who is as fast as him at his current weight,” Fedor said. “I have always found it harder to fight the lighter, faster guys, rather than the really big, plodding heavy and super heavyweights. And Belfort has always stood out in terms of his speed."

I'd be really interested to see how Fedor dealt with him.