Definitely the 2nd chick. It's like the perfect silhouette. THe other girl's bust line is kinda droopy. In fact the dress is just hanging there, like she didn't alter it to fit HER
I prefer it on Rachel. I think she looks good in pretty much anything though, she's very beautiful with a nice figure. I actually like the way that the dress sits on her frame. I can see where you're coming from when you say it looks too big but I like it that way. Her hair is lovely too.