Better quality of opposition ??? Ruben Olivares: Salvatore Burruni Lionel Rose Chuco Castillo Bobby Chacon Alan Rudkin Alexis Arguello Danny Lopez Eusebio Pedroza Carlos Ortiz: Battling Torres Duilio Loi Flash Elorde Ismael Laguna Nicolino Locche Sugar Ramos Carlos Teo Cruz Ken Buchanan
You should add in Ramirez, Herrera, and Torres for Olivares. Lane and Brown among others for Ortiz. Not sure what standard you're using when laying out their opposition. I'd give the narrow edge to Ortiz, though.