Help please!

I need help making a decision.
 I got into American University & University of Miami.
I still havent chosen.
American is #84 and UM is #50, I dont really know if those numbers really mean much.
The deadline has already passed to pay the deposit.
I went to DC, and I loved it, it has a college town feel.
I was in Miami in 08 because I was in school there, and I liked it as well, especially the warm weather year round.

I don't know which to pick.
suggestions would be most helpful especially if anyone knows anything about these two schools!!