Wow, this is an interesting one. "Harry O" in his 1984-1985 prime was a very good fighter. He would match up well physically with Corrales. Both were tall with long reach, good right hand power, and, of course, porous defense. Corrales was bit taller, but not much, and probably had slightly better reach. I see both guys hitting the floor, probably more than once each. Both had heart, so no one quits here. I'll go with Corrales KO 10.
I agree with your prediction. Lets also add that Chico didnt just have right hand power. He was a two-fisted puncher. I think the differance would be that Chico was a much better infighter then Arroyo, and his short punches were just murderous. Arroyo is underrated though, the guy could crack! He def would put Chico on his back once or twice. But in the end, Corrales rallies and devestates Harry late.
