Who holds the most impressive win over each of these future Hall of Famers?

[bojangles1987]

Roy Jones Jr
Manny Pacquiao
Bernard Hopkins
Sergio Martinez
Miguel Cotto

Tarver over Roy is easy.
I'll take Marquez's KO over Pacquiao.
Roy over Hopkins.
Cotto might be the only person with an impressive win over Sergio.
Pacquiao over Cotto.

[Dr Rumack]

Margarito arguably holds the best wins over both Martinez and Cotto.

[Doctor_Tenma]

Roy Jones Jr - Tarver

Manny Pacquiao - Marquez in their last fight, Morales is a close 2nd of course.

Bernard Hopkins - Roy Jones, clearly a better version than the one that fought Taylor in my opinion.

Sergio Martinez - Paul Williams and no it was not a robbery.

Cotto - Margarito, that's the fight that shattered his confidence and it took him a while to get it back.

[HandsofIron]

Jones Jr. - Tarver
Pac - Marquez
Hopkins - Jones Jr.
Martinez - Margarito
Cotto -Margarito

[Dodger07]

Roy Jones Jr
Manny Pacquiao
Bernard Hopkins
Sergio Martinez
Miguel Cotto

Glen Johnson
Erik Morales
Chad Dawson
Paul williams
Manny Pacquiao

[Real King Kong]

Nobody beat hopkins in particularly impressive fashion until he was 50.

[Dr Rumack]

Nobody beat hopkins in particularly impressive fashion until he was 50.

Roy pissed all over him.

[Larry the boss]

Roy Jones Jr-Tarver
Manny Pacquiao-Jmm
Bernard Hopkins-Dawson
Sergio Martinez-Cotto
Miguel Cotto-Pacquiao

those are my answers

[Real King Kong]

Roy pissed all over him.

Were you impressed by that? Roy was just a better fighter, but it was a dull fight. Hopkins has never lost fights the way roy did...even getting knocked out of the ring wasn't as bad as the ko's roy has suffered.