I tend to agree with morning light. I always try to come up with one or two specific questions about certain aspects of the school that I want to ask the interviewer. A good one is "tell me more about such and such class that exposes first year students to clinical experience", or "can you tell me a little more about blah, it looks really interesting and id like to get a personal account of it" This way it makes it look like you know some about the school, and you just want to know more specifically about things that you already know. It seems to me if you ask questions like "strengths/wekanesses of the school", then it appears like you don't know a whole lot about the school, and you come across as one of those applicants that really doesn't know why you applied to a particular school, you just added it because it sounded cool or something. I also really like it when they give you biographies of your interviewers. This way you can ask specific questions about their field of interest, or their department or whatever. I just think it makes you look a lot more knowledgeable and interested as opposed to asking generic questions.