I think for women the answer is most complicated, because for most of us its not a one or the other issue. If there's a lot of sharing and talking happening in a commited relationship but no sex, most women will not be happy. We want sex too! However, like the other person who answered said, many women want to know that men are taking them seriously and not using them, and the way we women do that is by talking and sharing and getting to know you an build up a layer of trust with you. The talking and sharing is often an avenue towards sex for many women, when they start to feel more intimiate emotionally with the man they are talking and sharing with. For most women emotional intimacy and physical intimacy tend to go hand in hand.
I would also argue that there's more to it for most men, especially if a man is genuinely interested in a woman for more than just a roll in the hay. Although, I am not a man, so I can't really speak for them.