I think Pacquiao has faster hands than Mayweather

[Uturn]

The key word you're looking for here is "Timing". Mayweather doesn't have faster hands than Pacquiao but what he does have is faster reactions and pinpoint timing.

[them_apples]

Mayweather is a counter puncher and by being one he has his opponents walk towards him rather than vice versa, it's easier hitting a target coming towards you than moving away and you can throw your hands with more conviction.

2 common opponents who both walked Pacquiao and Mayweather down - Oscar De la Hoya and Ricky Hatton, I believe Manny looked faster in the two of them compared to Floyd. While Pacquiao was the aggressor against Marquez, Marquez was forced to take the lead and come forward against Mayweather resulting in Floyd looking faster.

Also, watch Floyd coming forward and throwing punches, looks a lot slower than Pac.

keep in mind Marquez was a slow WW and a fast FW.

I'd say the velocity of Mayweathers punches are almost equal, but he can't put combinations together.

[Shabba Rank$]

Handspeed wise Pacquiao is faster than Mayweather.

But Mayweather is quicker and has better timing.