Looking for Mountain CG recommendation GA, NC, or TN

That's a pretty tall order. You cover 3 states and there are thousands of CG's. I will make a pitch for the Smoky Mountains outside Gatlinburg. Smoky Mountain Premier CG was set up for big rigs and backs up to the National Park and one of its trails. Then there is always a trip into town if the kids get bored for some go cart fun for them. Plus if you get tired of cooking yourself there are many great restaurants to choose from for that special dinner. Check out their web site.