I believe the interview is weighed pretty heavily just like at any medical school. The interview was very relaxed, with no stress at all, but I don't know if this applies to everyone. You do get two people at once, which is kinda weird.
Vermont gives preference to their own residents and fills up their class with them. They then give the remaining spots to out-of-staters, who are placed in categories depending on their admissibility. I believe they go to this list in May.
Andrew