looking for in a campground are full hookups, bigger sites, and a campground that isn't overrun or crowded
During the summer, all campgrounds near Smokey Mountain NP are crowded, traffic is heavy, and, until you get deep into the park pretty commercial stuff. If you stay in the Townsend area parks are, IMO, a bit nicer and quieter than those closer to Gatlinburg/Pigeon Forge. We stay near there every summer. We have found staying within an hour of the park and going there for day trips works best for us.