The usual names for the great heavyweight jabs are Muhammad Ali, Larry Holmes, Lennox Lewis, Sonny Liston and Joe Louis. But some guys that are rarely mentioned that had decent jabs are Max Schmelling, Max Baer (when he used it), Tim Witherspoon, Greg Page, and Ken Norton. They all had very good jabs. Joe Frazier had a good double jab to the body, and George Foreman would sort of push his into your face, thus breaking your nose by shoving it with a fist. Baer's jab would snap your head back. Schmellings jab would just hurt, and Norton's jab would break you out of your rythm and timing. Witherspoon and Page did the same as Norton's jab, just their's were slightly quicker and more effective.