Robinson only went up to middleweight after dominating the welterweight class, and that's about it. Meanwhile, Armstrong and Duran went to weight classes way out of their ranges and won titles... To many people, something is wrong here. Robinson went to light-heavy and lost to Joey Maxim. That was the only fight he did over 160 pounds. Armstrong jumped from 126 pounds to 147 pounds, a 21 pound difference, taking the title from one of the 50 best fighters pound per pound in Barney Ross. Then, he went back down to 135 pounds, and won another title. That is amazing to think about. Duran started at bantamweight and won titles in 4 different weight classes. His last world title, he won it while being in 22 years in pro boxing, at 37 years old, washed up, against someone much bigger, stronger, taller, younger, natural middleweight in Iran Barkley, who was a good fighter and not anybody's walkover.
Can Armstrong or Duran replace Robinson as the best ever?