He doesn't have near the same defensive capabilities as Mayweather, nor the same offensive capabilities as Pac. He's very good though.
Donaire does not fight like Mayweather. He is closer to Roy Jones in stance, with both hands held low. And Roy Jones is great but he was not as successful weight jumper but it does not yake away his greatness.
He fights like ROY minus the quick combination he pulls the trigger like Floyd once or twos at a time.