I am so glad I found this thread, I was thinking something similar just this a.m. It's a bit different for us, I am a size 3-5 depending on how the clothes are made and I'm petite,and have the J.Lo body type goin' on and I have been told I am perfect.I don't think so, but hey...the compliments are nice.
Anyway,enough of my vanity. 
There are certain parties/clubs we avoid because the people there just aren't our type physically.They are really nice people and great for conversation, but if we're going out in pursuit of a possible hook-up...we tend to go where we know there will be people who will be attractive to us on a sexual level.For me? I love women who aren't too skinny or too chunky.I also feel to each his/her own. Plus, we are a mixed couple and some of the clubs/parties we've gone to have had a serious shortage of Latino/African American men,{which is my preference.}All in all, everyone has their fetishes and preferences, and nobody's way is right or wrong, it's just what works for them.There's someone/club/party for everyone. 