i'm at AU's law school right now (after going to g'town undergrad), and i must say that it's pretty far removed from most of DC
it's hard to make a short hop around the city, because you have to take a shuttle to get to the metro (the AU stop is NOT at AU) ... it takes me about 40-45 minutes to get from woodley park to the law school campus via metro/shuttle, which is really absurd
it also kind of has the reputation as the redheaded stepchild of DC schools ... which really doesn't matter that much, i guess maybe in terms of employment opportunities
oh, and i think it's about 60/40 girls/guys, and there's a big gay male population, so if you're a guy (straight or gay, i guess), your hookup chances are pretty solid
if i were you, with your scores, i'd go for GW, you'd have a pretty good shot there ... are you IB or have you taken a lot of APs?