Consider a mythical matchup between Emile Griffith and Felix Tito Trinidad, both, of course at their primes. I say Griffith wins a unanimous 15 round decision, doing his usual fine mechanics job of dominating Tito consistantly throughout with his fine boxing skills and landing his right over Tito's left all night long. Then they fight a rematch, and Griffith does it again the same way.
Del a Hoya's movement and boxing gave Tito all he could handle. Griffith would do the same, but has the physical strength to push Trinidad back and out-muscle him. Griffith UD15 all day, everyday.