MGH was great, I really was intrigued by the bigelow model of wards. Everyone was super nice there, but there was a bit of a disconnect. Boston is great city, I love the access to public transportation. MGH obviously great program, but seems to be my 3rd just based on how I fit in.
UPENN- very similar feel to Duke as far a workload/program. again people are nice, but a bit of a disconnect. Loved philly as a city
Mayo- Love love love their schedule, everyone nice for the most part (one person did turn me off a bit, but he was well-intentioned I suppose), beautiful hospital. However, the cold... the -20 degrees F kind of boggles my mind (I'm from Houston, TX... the coldest it usually gets in low 30s). Also Rochester is a pain in the butt to travel to and the outside-of-work activities they have to offer aren't really my thing.
WashU- awesome schedule, everyone is nice, st. louis doesn't really scare me as a city (maybe it should, but whatever), so city isn't really a negative to me.
USCF- see above post but, really besides the expense, the city really fits my personality. Cali in general fits my personality. The people are very cool here, and did not have one bad encounter.
Duke- see above post but, I got a long with the people the most here.