Which fighters had the greatest punch variety, i.e. the ability to hurt and/or score points with a wide range of shots. At heavyweight, surely Mike Tyson is up there. He had a great left hook (see Tubbs), a great right hand (see Tillman, Botha etc), a great right uppercut, a powerful right hook to the body and also a strong left uppercut (see the first knockdown vs Spinks). At cruiserweight, its early days but Jai Opetaia is amazing. His straight left hand is remarkable, he can throw it to the body, head and around the guard with equal proficiency. He also has a powerful lead right uppercut and a strong right hook. The first knockdown vs Nyika with the right hook was amazing. Who else? Any weight division.
Off the top of my head, I’d go with Michael Spinks — he’s good with everything, has a tremendous jab and his lead left uppercut is as devastating as his ‘Spinks Jinx’ right. Can basically hurt you any way with anything and his arsenal is complete.
Not who I’d probably call best but Dempsey and GGG have pretty overlooked variety of punches especially Dempsey who seems to explore every possible opening to the body on the inside. SRR and Armstrong are strong candidates as well. John L. Sullivan seemed to have a good variety of punches at least according to what I’ve read. The very early Queensbury rules gave him the opportunity to employ hammer fists and hit the back and throat, Corbett said he never saw a someone throw punches like Sullivan did.
Duran for sure needs a mention. Roberto had a lethal right hand, great left hook, body shots, uppercuts, the whole package really.
I thought of Arguello when I clicked on the thread. Superb, well rounded boxer. Chavez didn't have the flashiest combinations, nor was he the best at throwing any particular punch, but nearly everything he threw was good or great. A very consistent, reliable fighter Maidana could get sloppy and wild, but he had serious power in either hand and could throw all kinds of shots from odd angles. It's why he gave Mayweather so much trouble despite being technically inferior.