Hearns and Hagler to win both.

Hearns is all wrong for Mayweather and Corrales is a poor comparison as he didn't fight like Hearns and was at his best at smaller weights. With that excellent jab, Floyd would be having issues and with a man that hit very hard. Floyd would never fight a truly dangerous fighter like Hearns.

Hagler against Hopkins is more interesting, but Hagler didn't play games and would hunt his man down. Hopkins would win some rounds, but Hagler is the stronger, more durable fighter. I see it being an 8 rounds to 4 kind of fight if you are going to fight 12 rounds.