I turned down my interviews at CCOM and UHS after I got accepted at KCOM. In retrospect, that might have been foolish because I now think it's important to get the full perspective from each school. I saved a lot of money, but I should have gone anyway. If I get interviews from PCOM and NJ now, I think I'll at least attend those.
I knew I wanted to go to KCOM after that great interview day. The best thing that I liked about KCOM was probably the fact that you do your third and fourth years at a different location of your choosing - I like to change things up every couple of years. It's a really good school with few distractions (meaning the town is tiny). The students there seemed to be really, really nice, but I think that's probably the case at 99% of the medical schools in the country. Overall, your life at either school would not be as different as you might think right now. You can impress your DO buddies by constantly telling them you attended the FOUNDING school of osteopathic medicine AND you always got visits from Dr. Still's ghost that used to help you study. 😉
If you really, really like both schools, then here's my advice: flip a coin. If you think you got stuck with the wrong one from the coin flip, then change your mind! If not, call it fate and accept the will of the coin. It's a really great way to force yourself to find your psychological proclivities.