Hi! I am applying to masters programs in biomedical engineering and I'm coming from a school that didn't have an engineering program (I majored in biochem and mat sci). I know I will get 2 strong letters from professors I did research with, and I also know I will get a good rec from my professor of science communication (science journalism class), but I'm not sure that admissions will think it's worth much. My other option for my 3rd rec is my advisor, but I don't know him as well as I know this other professor and never took classes of his, either. So do I ask my science communication professor or my advisor?