I found myself in a similar situation a few times at interviews, where interviewers said "oh you're a great applicant, and we'd love to have you, but I'm sure you'll end up at X school of medicine." It was definitely awkward the first time it happened, so I tried to diffuse the situation by acting flattered and gracious at their kind words, but I always tried to use those moments as an opportunity to praise their school. I would say something like "while I'm flattered you think I would be accepted to a school like that, I'd honestly prefer Y school of medicine because of A, B, and C" where A, B, and C were things I had previously researched and things I found exciting and unique about the school. It worked out and I was ultimately accepted to all of the schools this happened to, even though one school's interviewer told me I'd "probably be waitlisted because the committee will assume I'll go elsewhere."
Basically, always be gracious and polite and always do your research about a particular school before you go on an interview! Good luck with your cycle
