Here is Tyson's height/weight advantage when P4P ranked (1986-1989).

(a couple of inches/pounds either way have been ignored)

Berbick - none
Bonecruser - none
Thomas - none
Tucker - none
Biggs - none
Holmes - none
Tubbs - none
Spinks - none
Bruno - none
Williams - none

That's zero combined height/weight advantage over ANY opponent. In most cases Tyson was giving both height and weight away.

Here are Wlads height/weight advantages since he won the IBF title.

Byrd - 6" shorter, 25lbs lighter
Brock - 5" shorter, 15lbs lighter
Austin - none
Brewster - 5" shorter, 15lbs lighter
Ibragimov - 5" shorter, 20lbs lighter
Thompson - none
Rahman - 5" shorter, none
Chagaev - 5" shorter, 15lbs lighter
Chambers - 6" shorter, 30lbs lighter

So Wlad has fought ONLY three guys where he didn't have a HUGE combined height/weight advantage.

His SIZE is clearly his greatest attribute. Eradicating SIZE is exactly what P4P is meant to do. Fact.