bah, all depends on what criteria you use. I dunno...if you throw every fighter in the league (regardless of weight class) in a pool and project their fight win percentage vs. every other fighter...Well, you'd just be guessing.
Guys like Cam and Ripper might not be in the top 5 if there was some sort of bizaar fight-off but they are certainly top 5 in most fun to watch.
Is it really that hard to understand? Rick Rypien is one of the better fighters in terms of P4P, but he is not one of the top 10 fighters in the NHL. If you look at his card, he hasn't fought anyone in the top 10, and there's a reason for that. I posted my list of 13 fighters that are all easily better fighters than Rypien.
It's not fair, but it's life. Rypien is a great fighter, and has a warrior heart, but he can't match up to the top heavyweights like Boogey, Orr, Carkner, Godard, Laraque etc. It's certainly not for a lack of effort. He's a lot better than a lot of guys who are much bigger than him. Unfortunately there are guys who are 6'5 who are good fighters for their size too.
Are we talking about best fighter, or best heavyweight fighter? You seem oddly hung up on the latter.
I always think of the best fighters in terms of p4p. Rypien is the best guy at fighting in the NHL. Just because he physically does not match up with the John Scott's of the nhl does not negate that.