Maybe he means the middleweight champ. JAck Dempsey. Of couse he was not known as a puncher but a boxer.
Some great choices in here gents. I will go for Hagler. Maybe not the obvious choice but I sometimes have dreams about the way he closes on Hearns once he had him hurt.
Hey McGrain, very surprised at your Hagler choice. No doubt Hagler almost always got the job done. But in several instances he seemed to make a meal of it and it would take him 2-3 rounds longer than you might think once his 'prey' were first wobbled...
Former Flyweight champion, Humberto "chiquita" Gonzalez. He was definately a huge banger for a man so small, and could polish a guy off with one shot if he hit him at the right time. I'll never forget his fights with Michael Carbajal. Definately classics.
Possibly Joe Calzaghe. Once he has them hurt, he slaps them until the ref jumps in. Not killer instinct as such, but it's getting the job done.