Wait, size of what? From what I've observed, some women would perfer their men taller then they are, I don't know if shoe size really matters, hand size, I guess women would want their men to have bigger hands, clothes, well in my neigborhood, school, (ect), girls would prefer guys with slightly loose clothing.
Hair size, well I'm black and usually some black women detest huge afros in guys. They like either have it cut down low, braids, pressed, blow dried, permed, or even in a nicely done pony tail. I know people who really don't like big Afros. But that thing about hair is just my experince though, so I'm not trying to be sterotypical.
As for the old noodle... I guess it really does matter about size. No women wants it too small or too large. I would think the middle guy would alway be the best, but girls do have thier preferences, some might like small, some might like large, some might like the middle, and there might be some who just don't care.