UVA's new first year dorms are really, really nice. Large rooms, great lounge and study space, individual climate control by room, good security. They are gradually tearing down old dorms and replacing them with new dorms, and eventually (I think in the next 2-3 years) all the first-years will be in the new dorms (most already are).
For something totally different, check out the dorms at Salve Regina, in Newport RI - you can live in one of the old Newport mansions on Bellevue Ave or the Cliff Walk, converted carriage houses, houses designed by Richard Morris Hunt and landscaped by Frederick Law Olmstead.
http://www.salve.edu/residence-halls (they also have some cruddy dorms, of course).