I love the people at my school, the fairly laidback/noncompetitive atmosphere, the location and community outreach/service opportunities, the pass/fail grading, the level of excellent handson clinical training, the enthusaism and general coolness of the faculty and staff.
I hate the humid weather in the summer and the cold in the winter.
(temple)
I wish I knew that the grading system actually does matter, that there is such a wide variety of vacation lengths/timing in the 3rd and 4th years and that it matters, and I'm glad I figured out that it's not the school's prestigiousness but the kind of education you think you're going to get and how you feel when you're there. (aka, that there is no reason to kill yourself among mega-gunners when you could get an equally good or better education in a more relaxed but attentive environment).