Cool!! I wonder if you got my spot!
I just withdrew from SB a couple days ago after getting off the NYU wait list. It was really hard to withdraw from SB, it's an awesome school.
I really like SB. The students were friendly, the faculty supportive with a high quality program. It is in the suburbs, but Port Jeff is a nice town nearby. The city is a bit of a trek, but weekend trips are totally doable (about 1.5 hours by train). It seems like a really nice place to be.
Anyway, I had to make the same choice last month, and I chose Stony Brook. Downstate seemed impersonal...you'd see a lot at Kings County, but my general impression is that you're kind of thrown into things. Both good schools, but that's my take on things.