Hagler and Hearns were just better fighters than Castillo and Corrales. If you put Hearns or Hagler in the ring with either Corrales and Castillo they demolish either of them. That is how good they were. They were the top two fighters in the world at the time. Where was Castillo and Corrales. My guess is top 20 maybe but I wouldn't count on that. Hagler Hearns lives a little more into history.. Just on the quality of the guys.