Roy Jones Jr. I think. That left hook he always caught people with while they were jabbing was a thing of beauty. And THAT two piece he gave Reggie Johnson as Johnson was jabbing....possibly my favorite sequence in all of boxing.
Well Ken Norton always gave excellant 'Boxers' Like Ali , Young and Holmes trouble by Neutralizing their Jabs
Ricky Hatton at least against Kostya was excellent. Took the jab and straight right away (however unorthodox).
Lomachenko best at everything offense and defense. Nichols has a great way of taking away jab with a check jab
Chris Eubank was tremendous at slipping jabs by a slight fraction (Watson, Malinga and Rocchigiani, renowned jabbers, couldn't land any at all).