As good as the Corrales performance was, I also have to go with Tito/Hop. It might be hard to remember for a lot here, being over an entire decade ago, but Tito was considered a beast. Rightly so too, as he had just come off two destruction of prime, all but undefeated world champions. The only loss between Vargas and Joppy was one loss to champ Julio Cesar Green, which he avenged twice.
These were top guys, and Joppy especially got destroyed so badly it was incredible. Anyone saying that Tito was too small and just a welterweight needs to go back and remember his career. Small welterweights that don't belong at 160 don't lay waste to Vargas and the middleweight champ without much trouble. If he didn't belong at 160 and was too small, he would have lost to Joppy. Instead he just about killed him and no one else has been able to get close to doing that. It was a great win.