Apple Barn, Bennets BBQ & Flapjacks Pancake House are highly recommended meals!
Plan extra time getting in/out of town as traffic is rather heavy(Fridays & Sundays seemed the worst). We find it best to park a block or two out of downtown Gatlinburg, then walk around the downtown area...definitely could take a full day! Lots of shopping and unique stores/atmosphere to the area.
A couple attractions that were very popular on our family reunion trip last summer were the Alpine Coaster, Ober Gatlinburg, Ziplining, Horseback Riding, and the Ripleys Aquarium.
I have always stayed in cabins, never hotels, but that's definitely a unique option to check out depending on your party size.
Hope you love it & hope the economy helps with all the fire recovery from last summer. I have been on several trips there and loved every second of it!