Greatest orthodox fighter vs Greatest Southpaw fighter in each division

Heavyweight: Ali/Louis vs Moorer/Byrd Cruiserweight: Holyfield vs JC Gomez Light heavyweight: Archie Moore vs Marvin Johnson? Super middle: Roy Jones vs Calzaghe Middleweight: Monzon vs Hagler Light middle: Hearns/McCallum vs Wright Welterweight: Sugar Ray Robinson/Leonard vs Young Corbett III?/Whitaker Light welter: Chavez/Pryor/Locche/Cervantes vs Saensak Muangsurin Lightweight: Duran vs Whitaker Super feather: Mayweather/Arguello vs Flash Elorde Featherweight: Pep vs Saldivar

Only fighters who really had great success with southpaws are Marquez and Hopkins because they are good at timing that straight right. Those are the only ones I can think off the top of my head for this generation.

May I know who would win in the battle of lefty and righty in each division? My money would be on the southpaw since they're very awkward and difficult to fight for orthodox fighters. When I box, I like to switch between orthodox and southpaw like Cotto. Idk, I can box with both hands and both styles. I don't know why some boxers don't feel comfortable switching back and fourth.