Holyfield spent 10 years as a heavyweight before he met Lewis. During that time he was the undisputed heavyweight champion of the world and was stopped once (it took Bowe 32 rounds to get rid of him). He is an all-time great heavyweight.

Tua and Mercer epitomise what it is to have a granite chin. Both fought at the highest level with Tua never being stopped and Mercer when he was a pensioner. Mavrovic was also never stopped in his career.

Basically Lewis didn't stop four fighters that don't get stopped.

Now lets look at who he did stop.

Mason
Ruddock
Bruno
McCall (doesn't really count)
Morrison
Akinwande
Golota
Briggs
Grant
Botha
Rahman
Tyson
Vitali Klitschko

Every single fighter on this page would be a strong favourite to beat Molinas and Duhaupas. And how many would Wilder beat? He'd have a punchers chance with everyone (well obviously not with McCall) but I'd bet the unders at 50-50.