A prime Mayweather VS a prime Robinson?

Would would win this at welterweight?

Floyd Mayweather: very fast plus superior defense. Also 5'8 which is faster than Ray Robinson who was 5'11 i.e. small is faster than bigger.

Ray Robinson: good footwork and a strong chin. Robinson at 147 had KO power in both hands and was a puncher as well.

Many would say that an all-time great would destroy Mayweather in 10 rounds,
I say split-decision for Mayweather or a draw .

What do you lot think?