Biologically the uncircumcised penis should be 'better' as the foreskin is designed for the gliding & lubricating motion inside the vagina. The lubrication aspect is best illustrated in male masturbation where the cut male needs lots of lubrication. The foreskin also offers extra stimulation to the labial area as it bunches up as it glides in & out. The inner lining of the foreskin contains extra sensory cells. HOWEVER, cut boys are lucky as women prefer the 'look' as opposed to flappy skin.