Prime for prime, or recently? I think that prime for prime is a 50/50 fight. We would need a trilogy to know for sure. And maybe even then we wouldnt know for sure. If I had to choose, maybe Morales. Morales' boxing skills were extremely under rated because he usually chose to fight. He was a rugged mofo with a steel chin.
I got Marquez back then and Marquez now.. it's close prime for prime.. but Marquez "beat" a Manny who gave Morales issues the second fight.. I mean.. its super close so it ain't given that Marquez would win.. that's just where my sail is blowing.... Great fight tho!!! Today.. Marquez would win easily.. Morales is a good fighter but lost decisively to Garcia... there's really no fighter at JWW that would beat Marquez decisively today.. that just let's you know where they both stand