When you say "VERY close", what are you saying? Two point difference? Almost even? Be more specific so it's possible to chop your argument down. You can even post your scorecard. Thanks.
Whitaker's advantages: Jab, workrate, in-fighting, southpaw style, bodypunching, and at 135 - footwork. Mayweather's advantages: A little faster with a little more power. Sweet Pea by a clear decision.