Harrison is a bedroom community. Your positive is the train to take you to where ever. Hopefully it's cheaper but I have no idea how pricing works these days (makes no sense to me)

JC is more of a full city. Hoboken is closer and like 2/3 of a city more than Harrison. If you can afford all 3 it's a lifestyle question, and how much money you want to save VS access to things you'd want to use alot.