Are you a North Carolina resident or an Ohio resident? They're both great schools. I'm sure you'd get a great education from both. If it were me, I would go with UNC based on the warmer weather and its closer to my family. But then again, I hate the cold! lol
Also, which one is cheaper? There are so many factors that go into choosing a school. I'd recommend evaluating what is most important to you (i.e. cost of attendance, proximity to family, weather, curriculum, etc) and choosing based on which school matches what you want. Hope this helps!