Oscar De La Hoya. EDIT Manny Pacquiao has won titles in 7 divisions, beating Oscar's record.
thomas hearns sugar ray leonard oscar de la hoya (actually 7 titles in 6 divisions) floyd mayweather manny pacquiao (actually 7 titles in 7 divisons)
Yes Manny Pacquiao and Bernard Hopkins.
Well, he started fighting some of Mexico's prestigious fighters of his division. People such as Erik Morales, Marco Antonia Barrera, Oscar Larious and Juan Manuel Marquez. They were all Mexican juggernauts at the time. When he beat all of these three, then people started paying a lot more attention to him. Then when he started beating even more boxing juggernauts such as Oscar De La Hoya, Antonio Margarito, David Diaz and Miguel Cotto; then he got even more and more attention. Even Mexican people started to like Manny Pacquiao. Many of my class mates, non-Filipinos started to like Manny Pacquiao. Then, Manny Pacquiao started to get Mayweather's attention and this is when he was finally a mainstream boxing icon.
i believe de la hoya is naturally left handed, but boxed orthodox
Oscar de la hoya, manny pacquiao, hector Camacho, Floyd mayweather, amir khan, meldrick taylor, Muhammad ali, sugar ray Leonard, roy jones jr., pernel whitaker, sergio martinez, floyd patterson, shane mosely, sugar ray robinson, Nicolino Locche were the quickest MANNY PACQIUAO his 3 punch combo is super fast that it looks like one punch from other fast boxers...
I'm sure there are a few of them: Archie Moore for scoring the most ko's of any champion. Thomas Hearns for being the first boxer to win titles in 5 weight classes. Oscar De La Hoya for being the first to win 6. Manny Pacquiao for being the first to 7. Henry Armstrong for being the first to hold titles in 3 weight classes simultaneously.
De La Hoya by KO.
manny pacquiao by far because look at what Floyd did to hatton then look at what pacquiao did to hatton, pacquiao is very explosive when he wants to be, and he never stops throwing those punches. also people will say look at his record, but he only started to develop and peak at a later stage, and hes proved himself at most weight classes
Boxing
Manny Pacqiao WON!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Jerry Quarry, then Oscar Bonevena.