Chris "Rapidfire" Byrd. I think he squeezed as much out of HW as you can while having non existent power
Paul Spadafora. He was a great boxer IMO but had zero power. Malignaggi had hand issues like Calzaghe. He had some Ko's early in his career.
Slapsie Maxie Rosenbloom. Pernell Sweet Pea Whittaker. Good nicknames as well as pillow fists. PS: Ali post Thrilla.
And being severely undersized and lacking physicality. So as a pure boxer hes about as good as it gets since he didnt have much else
Zags was the obvious one. Fury at his best.. even with his more aggressive style he's not a particularly heavy puncher
Yeah being a MW olympic silver medalist and starting your career at SMW to go on and grab a HW title is actually amazing.
Mayweather. Before I get the comments of he could punch at lower weights, he always had glass hands. In the first Castillo fight, he complained about hurting his hand. That was at 135 pounds.