I'd give Charles a slight edge as Spinks did struggle more with boxer types. He just barely squeaked past Eddie Davis and lost the first half of the Gregory fight. Ezz survived dangerous punchers like Moore and Ray in multiple bouts so I don't think he'd get KO'd, and I don't think he's KO'ing Spinks. Spinks did overcome a fine cast of light-heavies in his own time so he can't be written off though. A really tough call between two of the best ever light-heavies.
I was always a Spinks fan, but I take Charles against anybody his own size and weight. One of the best P4P fighters in history.
Sounds like a slam dunk for Ezz and I didn't even have to bring up the 30-40 year era difference! Charles. IMHO one of the top 5 pvp fighters ever. :good
Charles beat Archie Moore 3 times at that weight, I got to go with Charles. Spinks was one of the greatest light heavy weight olympians of all time, but while a good champ as pro he was not an all time great