I don't know much about Emory, but I can comment on both Einstein and UF since I visited.
Einstein: It is a rather good school with a solid reputation. It is rather far from things being in the bronx, and yes, everything closes on Saturdays (library, gym, etc...). The housing is nice and on campus and the gym is also really nice with an indoor pool, located rather close to the on campus-housing.
I cannot comment on the professors at all, but the students all seemed to like the school and the buildings, while not brand spanking new, weren't all that bad either.
UF: The school is pretty good (though I think a notch below Einstein). Professors are very accessible from what I hear. The school is inside the hospital which is convenient, though student housing is a little far away. You def. need a car in Gainsville to get places and probably a bike (it's not convenient to drive to places on campus and then try to find a parking spot).
The hospital is pretty nice (Shands), but the facilities as a whole are run-down I would say. There are some new wings here and there, but the study longue for instance has a retro-80's look and so forth. Some of their programs are top-notch too, so perahps if they are tops in something you want to do, it could be a better choice for you, than say Einstein. (For instance, their neuro department is really, really good with top notch faculty and lots of money and facilities invested in it).
Of note at UF: Shands Hospital did not have a tramua center until this year. They actually brought the chief tramua surgeon from my hometown hospital up to start their new tramua center so it should be getting started shortly, but I'm not sure it has yet. One last great thing UF has: in-state tuition if you are a florida resident and of course the weather 🙂