What fighters could have mimicked marciano's 49 -0 if they were in his place

How would fighters such as max baer, braddock, louis, quarry, frazier, chuvalo, floyd Patterson, ECT. Which ones would have also gone undefeated for 49 fights. No need to add any obvious names like foreman, tyson, or bowe, just looking for old blasts from the past that could have done the same.