This is a good matchup Gonzalez had a great chin at Jw but could be hurt at LW(must have been making weight). Im not sure Gonzalez had the fire power to really keep Rosario honest, Miguel was a good all around fighter though not great at anything but pretty solid all around. Im leaning towards Rosario though, at least a prime one would have even decisioned him.
Rosario is a guy who made an impact on strong chinned guys. I thought he would stop Chavez. But Chavez was great. I think Rosario beats Gonzales by late round stoppage.