I went through something similar in choosing schools (except I had to make mine by April, 30th, lol) so here's my 2c. I had a full scholarship offer one place, so I went and asked some of the ED docs where I used to work what were the important heuristics, etc. They all acknowledged that debt matters...but all said the quality of training matters more. For me, that meant taking a smaller scholarship(and going oos) at the school where I felt the training (especially in the ER, my primary interest) was the best. Anyways, my thought with Mercer is that all your training at either campus is at flagship hospitals with level one trauma accreditation. One of my mentors did his residency with Mercer and he LOVES the program and students there. You may have that at PCOM, but you probably won't. Added to which, if you aren't sure you want to practice in primary care...it's still usually harder to go DO than MD. Either way, good luck