I think you have a great shot and are best fit for penn and rice, although you could fit in at Brown, I just obviously don’t know your personality, other interests, etc. But you ECs are solid and your stats are great!
Chance me back: http://talk.qa.collegeconfidential.com/university-pennsylvania/1998129-chances-for-upenn-cas-ed-dream-school.html#latest (i know my thread says Penn, but i am also considering brown for ED).