I dunno about all that. If you’re going down the history route, then why not also Sullivan as the first recognised heavyweight champion of the modern gloved era, Tyson as the youngest ever an Foreman as the oldest ever?
Marciano...lol. Based on what? Wouldn't fight black fighters until Jersey Joe and an Ancient Joe Louis. Wasn't Joe 38...and Walcott was like 50 lol
Mount Rushmore: Mike Tyson Ali Marciano ??? Iron Mike Tyson is number 1. He's forever part of popular culture. Nobody else comes close. He's in Punch-Out as a final boss. He was D-X's Enforcer, then betrayed Shawn Michaels for Stone Cold in WrestleMania. Significant during the Monday Night Wars. He's Balrog in Street Fighter. We always wondered what was the "M" for in M. Bison for the original Japanese arcade release, and it was "Mike". That boxing anime had his peek-a-boo style too. Everybody knows him.
I find Lennox slightly overrated Ko'd By Rahman and Mccall, didn't fight Prime Tyson or Riddick Bowe, was comprehensively outboxed by Bruno until the KO, was soundly beaten by Mercer even though he robbed a win on the cards, jabbed to death by Klitschko until a cut saved him then disgracefully swerved the rematch.