He did more damage to smaller heavyweights than SHWs did against the same sized people. Something to consider.
I dont rate him that high h2h against the skilled post 60's fighters (and especially post 80's) with good chins, weight, and athleticism. Hed beat a few but the really big guys who could crack or stick and move give him hell if youre being honest with yourself. In terms of legacy, heart, stamina, and p4p skill and power hes in my top 15 for sure. Havent done a list in a while, he might even squeeze into my top 10.