Ummmm.... how come no one's mentioned Frank Mir on a heavyweight list? lol.... he's a cocky bastid but he's one of the top submission guys out there and is very dangerous.
That being said Fedor is a KILLER. I agree with Sauce (as usual) in that as much as I love Nog. Fedor has to be put ahead of him.
For me the top 5 heavyweights in MMA probably shape up like this...
And I'm even giving Brock some respect by putting him ahead of Randy considering what Couture has done in his career. But I think that's gotta be pretty close to bang on. IMO anyway.