I am not and niether is my 6 month old son.
There is NO need to cut off the foreskin. There used to be when hygene was not as good as it is now... its a cruel thing to do and there is no reason anymore.
Also... I think that a penis head with a foresekin is more senstive due to the cover it has. So I would guess (I'm guessing becuase I have a foreskin) so better sexual pleasure for an uncut man.