Thanks for the feedback everyone! I think I am having such a hard time because they are both great programs and while each may be stronger in specific areas, they also have a lot of similarities. I could see myself being really happy at either one.
Duke is ahead for reputation, research, and call schedule (I'm a fan of the night float). And Nashville definitely wins for location, but I wouldn't be opposed to living in Durham. Both have good outdoor activities nearby, comparable weather, and neither are within driving distance of my family (but a short southwest flight away 🙂).
It's going to be a tough decision, but I'm trusting it will all work out on match day and I'll end up where I'm supposed to!