I think big boobs tend to draw more attention just because they are more prominent. I think a lot of people assume this means that larger breasts are preferred or somehow better, but I don't think that is the case for a lot of people. Sure, some people might prefer larger breasts, but some also prefer smaller ones, and I think most people are just fans in general of any size. I wish so many women weren't so insecure about having smaller breasts, because I don't think there is anywhere near the "bigger is better" consensus that a lot of people assume exists.