Lennox prolly the greatest 1-2 puncher in history when you take into account the power of his right and that ramrod of a jab. Wladimir right behind him. For a big guy, it was fast as hell and carried all that weight behind it. Joe Louis jab-cross over his opponents lead hand could reach anyone, and the arc was pretty af Larry Holmes had that badass walk away 1-2, came out like a whip. Tommy Hearns obviously, they made a damn anime about it 2000's era Hopkins had a sneaky one Terence Crawford for current crop, it's sharp and puts lights out. There are times he looks like a discount Hearns.
As much as I disliked his safety first, by the textbook style, Wlad's 1-2 was pretty lethal when he landed it. Surprisingly quick, and very hard. It gave a number of fat ex-cruiserweights hell.
Tommy Hearns. A lightning fast jab followed by a right that's at least in the running for P4P hardest right in the sport, delivered by a fighter who usually had a big height and reach advantage.
Basilio used a left hook to the body, followed by the same punch to the head, to good effect against Robinson in their first fight.
Ali's bread and butter Joe Louis Tommy Hearns Arguello Manny Pac threw a very fast 1-2 Nunn Holmes Lewis Wald Klit