We go about once every couple of years. Granted I've never been bar hopping there, but with the luxury cabins available usually there's plenty to do without ever having to leave the cabin. All the cabins we've rented had a hot tub, pool table/game room stuff. Have the girls cook, get plenty of alcohol, girls wear their bikini's and there's no reason to leave the cabin. Any other choice and you're doing it wrong.
We usually avoid downtown Gattlinburg and Pigeon Forge as it's pretty much a country Vegas. With that said, there's a ton of put put places that can be fun. Go to the visitors center inside the park and they'll give you a trail map. The park should be beautiful this time of the year so I would plan on spending most of my time there.
This past spring we went white water rafting. Not sure if closed now, but we had a blast.
The only other suggestion I would have is you could make the 1.5 hour trek to asheville and hang out and drink some good beer. Honestly, I'd still stay at the cabin if you got the right one and enjoy the booze and bikini's. Have fun!
