If Floyd retires undefeated & it doesn't brake Marciano's record- I think it would be a major accomplishment, but not great. If he retires 50-0, what would trump it?

Seriously: I think all our bitching about who he didn't fight will fade into oblivion or ..as Tyson would say Bolivian

Ali's winning the HW title 3 times, use to be considered a major accomplishment to me, but Holy has won it what 4, or 5 times? In some regard that is major, then on the flip side- its like well damn why cant U two just hold on to the title?

I think there is one accomplishment that has faded, but hasn't died: Triple Crown winner Hank Armstrong aka suicidal!
Featherweight, Welterweight & Lightweight champ..at the same time!

Hank did lunge at times, & lowering his head could be predictable, but his workrate was off the charts. His inside game was pretty nasty- he knew out to use his shoulders inside to tee off on fighters.

I think Hank's triple crown is the greatest accomplishment to date.

Guys like Mayweather, Holmes or Wlad's run at holding a title can be seen as a major accomplishment but it can als0 be seen as subjective- we can argue who were in their era & who wasn't.

Forman winning the title & Hopkins run as an old man IMO trumps Floyd's accomplishment- provided Floyd beats Marciano's record 50-0, then that would be hard to dispute: 18-20 years undefeated.
How does one argue that in 3 weight classes?

Honorable mention to Bob Fitzsimmons- I just don't know enough about the guy in actual footage that is.