I wasn't in the top ten percent and am a white middle class male
lol not sure about that, i'd say the same for being an Asian, since we r an over represented minority.
though there really was never a moment that I can say was the catalyst for wanting to go
if there's really no revelation time, then you should go the dream/vision way, which is to say that you've always wanted to go to that school and stuff...either way, you've gotta show you want to go there, especially after having applied there once already.
beware, DO NOT say anything bad about your current school, don't compare programs. it'll just make you look bad.