I think heavyweights should be part of the p4p equation.

I mean in MMA Fedor Emelianenko is considered by everybody to be in the top 1-3 p4p. It would be frankly absurd to have a UFC p4p ranking without him in it

@Fenster, I personally find the issue of whether Wlad and Vitali's height helps them or not to be irelevent.

Nobody argues that Mike Tyson should be downgraded because his punching power gave him an unfair edge, or that Pacquaio would not be beating guys if he wasn't so naturally fast. All of the strengths and weaknesses of a fighter are a largely part of their genetically inherited makeup and whether a fighter wins because he is freakishly tall, or has freakishly good stamina is neither here or there, as long as both are using their attributes and gifts to win the big fights that's all that matters.