As with these things it’s hard to nail what we mean. The “greatest”, the greatest boxer ? Heavyweight ? Sportsperson ? As decided by ??
For me Ali is up there certainly as a boxer both for what he did inside a d outside the ring. But of course it’s a subjective thing (although plenty of...
He was also prevented from boxing during his peak (25-29) and you don’t mention his run during the 60s cut short by the draft. Depends how you define greatness I guess but few in sport or boxing - even to this day - argue that he didn’t live up to being dubbed “the greatest”. But fair enough...