>>470224I agree that tourists have become a major problem (Cade's Cove stands out particularly), but I think you can still enjoy what it has to offer, provided you're willing to explore at non-peak times.
I've been visiting the Smokies once a twice a year for 5-6 years, and I still have so much to see. In particular, I'm looking forward to seeing the flowers bloom on Gregory Bald in July.
On my most recent trip, I spent an evening with a friend at the waterfall behind the Tremont Institute. The only company we had was a rattlesnake on the trail and the sound of water.