when i was born in an army hospital in honolulu in the mid-60's, the doctors only circumcized if they felt there was an excessive amount of foreskin. it varies, and mine was deemed fine to leave alone (there, i've said it..lol). i've never had a 'complaint' and usually if i don't mention it, a girl isn't even aware. i got lucky i guess. just enough to retain full sensitivity..no cut nerves. and just to be clear - not having loads of foreskin does not mean you got 'shorted' elsewhere..
just to be, umm..clear.. so, even though i voted 'leave it', i would say it really depends.
ryan