Who punches harder Mayweather or Marquez?

[C-Lo]

Mayweather's much bigger and his power is underrated... he's not a power puncher but his shots are solid and he punches with great spead and technique... so yeah... he can hurt you

I'm with you on this one. Mayweather's power is underrated.

Although Marquez' power did carry up to lightweight, this is still untested waters for him. It's really hard to say what his punches will do to a welterweight.