I gotta go either Valuev or one not mentioned...Buster Douglas.I mean at least all others gave themselves a chance to win in first defense and not go from physical phenom to gelatinous mess almost overnight.

Damiani was a WBO joke but could box like a fool and was schooling undefeated Ray Mercer,badly.Bruce seldon takes much flack after going school girl against Tyson but really...he had good hands,speed and a killer jab.His problem was a match stick chin and a chest full of purring kittens when it got tough.