Arrogant...

Over-dressed for class most of the time (says mid-westerner). Most people are upper-middle class and thus rather arrogant, but you get used to it. SO MANY GAY/QUEER/ALLY/FEMINIST ACTIVISTS!

Serious Academics, Cultural Diversity

Academic programs are really great, especially for international studies majors. Most people on campus, even the party animals, are really into what they're studying. The location is definitely important--even if you don't get off-campus very often, being in DC gives lots of opportunities.

Racial diversity isn't great, but cultural and experiential diversity is huge.