My freshman year (only one in the dorms) is one of the best years I can remember. Definitely made a lot of friends, definitely met a lot of forgettable folks, but it's a bunch of people who've never had that level of independence before -- logically, binge drinking ensues. I think a lot of people ask this who are sort of shy by nature or like to spend a fair amt of time alone. I was definitely that type going into college, but the dorm life was really good for me. Even typing this out I'm thinking about how much fun I had. Definitely do it. Also, my college had really good food, I ate on campus a lot even after I moved off.
2nd - 4th years I lived off campus in an apartment for 2 years and a townhouse for 1. All were student housing, although not school-owned. So you end up with a similar environment where we hung out w/ our neighbors a lot, but you got a lot more space (own bedroom, bigger living room, kitchen, etc).
Definitely do the dorm thing even if you can get out of it. You'll look back on it as an important time in your life (even if not for the same reasons as mine). Everyone on campus is making friends with each other, you don't want to be left out of that even if you think you don't care right now. I remember I wanted to go home really bad my first night, but the next day my roommates moved in, orientation started, met a lot of folks, drank more than we needed to, and I realized how much fun it was. Don't miss out. If you end up hating it, you can publicly berate me, and then move into a 1 bedroom your sophomore year (or spring semester at most schools if its that bad).