I'll shoot, although I am an only an applicant just like you. Reputation-wise it is a wash, so I think it will come down to the intangibles. UVA is in a more rural area but sees a diverse patient population due to its refugee center status and the large area it serves. It also has PF pre-clinicals which should be nice, but requires away rotations during 3rd year.
I don't know much about GTown as I did not apply there, but the things that stick out to me are its Jesuit mission and its proximity to DC. I hear its facilities are older, but that shouldn't really matter...
I don't think you could go wrong with either really - maybe wait until they release financial aid packages? I hear UVA can be rather generous to give OOS enough scholarship to match their IS tuition, but not too sure about that either.
EDIT: Was mistaken, GTown is also PF