I can agree with Ali, Foreman, Holmes, Frazier but Shavers and Norton wouldn't really do well I think.

I mean obviously you pair Ali vs anyone Ali gets the benefit of the doubt like I usually give Foreman the benefit of the doubt just based on power alone.

Ali had all the intangibles to beat anyone, I won't bring up size or anything but everyone always brings up about how he lacked power but he did enough to be one of the greatest

Foreman wasn't as good of a boxer but he's the best slugger in the history of the sport.

Frazier was a little small, so was Tyson though.

Holmes wasn't too terribly big, he had one of the best jabs.

Norton and Shavers couldn't handle the power punchers. Shavers-Ruiz would be the best match up for him, Norton-Lyakhovich would be good too.