Oscar had a sporadic and infrequent last couple of years, but even then he was willing to take massive risks. He gets flak but overall, he is a fighter I have a ton of respect for. He took a ton of risks and fought probably more guys at their absolute peak than any other modern fighter. May and Pac both picked an old Oscar, but Oscar's losses all came to guys that were real ass-kickers riding a wave of momentum: Tito, Mosley (x2), Bhop, Mayweather, and Pac. All of those guys were peaking, and four of those 6 bouts were close.
Much respect. His biggest problem, from my perspective as an outsider, was his inconsistency. Switching camps, sometimes having curious gameplans, etc. all cost him in some big fights.