let me first say that I'll be in the 07-08 app cycle, so I haven't even begun the application process yet. Obviously I can't speak on grading.
But I would say that Campbell would be the better choice academically. It has a great reputation, especially in NC. However, as you probably already know its very expensive, especially when compared to NCCU.
If you go to the Campbell website, there is a viewbook there where you can see what all the current students have done in terms of work while at Campbell.