I think it really depends on the girl. I'd say most seem to enjoy some extra depth, there is certainly a pretty large group that has relatively shallow vaginas or who find contact with the fornix too tender. I think most will agree they like being stretched by girth, but I find it frustrating to fuck with only the first four inches of my dick. When there is sexual incompatibility, you move on quickly.
Nice, baby. I'm going to have to see what other interesting opinions you have around here.:wink:
But answering the question, I would say that I feel like I have to do a lot more work to make the sex good for both of us with a smaller cock. Gripping down more really. With a large cock I there is the obvious stretch or feeling of fullness, but I also feel like that frees me up to relax a little bit and enjoy the pressure and probing. Its kind of like the difference between doing situps and getting a massage. I can contract down when I need to, but I don't feel like I have to squeeze down hard to make it good for both of us. It gives me a lot more control over my orgasm.