Mayweather-Canelo or Duran -Barkley? Both were fighting much bigger guys. Floyd won more easily but Barkley was coming off a win against Hearns and had a lot more experience than Canelo
Mayweather-Canelo. Canelo is a much better fighter then Barkley and Mayweather took him to school completely dominated him while giving up at least 15-20 Ibs. Meanwhile Duran had a close competitive fight that he edged out. Overall dominating a better fighter is a much more impressive win.
Durans win was easily the more impressive for me especially when you factor in how small he actually is.