I actually did apply to both, got into DO and rejected post interview from MD...it was suggested to me that I may have been looked at less favorably (and suggested by someone who works in admissions...) after my MD interview because there is some sharing of knowledge if you have been accepted to one or the other already...don't know if it's true, but just food for thought. I was rejected post interview, btw, from the MD, which MSU claims they really don't do unless someone grossly misrepresents themselves. Good luck, they are both great schools!