I like a nice fat head, it is visually pleasing and also very fun to wrap my lips around and suck on. But honestly, as far as penetration goes, I think the first few moments when a guy first enters me, stretching me out, pushing up inside of me, are so fucking amazing that *I* think it probably doesn't matter if he has a fat head to his cock or not...it just feels really amazing to have any variation of a BIG cock slide up inside.
Ok. That's my two cents.