I rented a house with three other girls this year and had a horrible experience so I will be moving into the on campus apartments next year. It all comes down to what you're looking for. I can handle ****** roommates. I can handle them not talking to me, falling silent when I walk into the room, throwing temper tantrums about me parking in the driveway, leaving crumbs and mess everywhere, not taking the trash out... But what I can't handle is when someone, especially a vet student, kicks my dog. There were a lot of problems this year that made me realize I should just find a place of my own.
Personally, I wouldn't live in a "dorm," although I am doing on-campus living. I much prefer to have a place of my own without roommates, and that's usually pretty expensive in a dorm setting. That way, when I want to go to bed at 10 PM, I don't have to worry about someone laughing and screaming on Skype with their boyfriend until 1 AM. I really like that the apartments I'm moving into have designated quiet times, something I really needed in my house this year!