All I can say is that a girl that has nice, big boobs but no hips or ass, is not attractive. However if the girl has nice robust hips and ass, her boobs can be any size and I will still think she's hot, but big boobs wouldn't hurt, too

Although shape of the breast seems to be more important to me than size. They need that natural mirrored-teardrop look, not just two rock hard balls, like you see with surgically-augmented boobs. Big areolas are nice too

sorry I don't know why that first part double posted- my mistake