The Smoky's are great, but I would avoid Cades Coves on a weekend, unless you like breathing exhaust for and hour or four.
If you like to eat, try 'The Burning Bush' huge breakfast. Its on your right just before you enter the park in Gatlinburg. Also try Charlie Peppers in Knoxville, excellent Tex-Mex and bar
. To get away from traffic, try the foothills pkwy down to Look Rock. Hope this helps.
Have fun, wish I was going.