I can't count how many times I have been to this area. We have only stayed in Pigeon Forge a handful of times. I prefer Gatlinburg because it is walkable. Pigeon Forge is no. The only "walkable" area of Pigeon Forge that I find to be worth walking is the Island and Margaritaville area. Pigeon Forge has some cool stuff (Dollywood, The Island, The Apple Barn, random arcade/gocart entertainment complexes etc...) Tripadvisor has this entire area down when it comes to lodging and food. Thsi area is tricky as their are some dated hotels that are not well kept. I would definitely take someones advice when it comes to lodging.
Here are my thoughts on the area. Stay in Gatlinburg. Dollywood is fun, but obviously no comparison to Disney. My kids are 4 and 6 and enjoy Ober Gatlinbug more than Dollywood. Ober is a bit Janky, but does have some unique attractions. There are 3 mountain coasters in the area. One in Pigeon Forge, one in Gatlinburg, and on at Ober Gatlinburg. I would only do one and only ride once. In my opinion, the Alpine Slide at Ober is way more fun. I like to stay at the Riverside Motorlodge. It is old, but as clean a room as you will find. It is also located on River Road right by the sky lift making it convenient to anything. It is family owned and operated. The Riverside Motor Lodge is nostalgic Gatlinburg. They don't even accept credit cards for a deposit, a check must be mailed in... If you are looking for a chain, stay at the Hilton in Gatlinburg. The Hilton is in a similar location and always nice. Gatlinburg is all about breakfast and you can't beat Crocketts Breakfast Camp for breakfast. As far as dinner, there really is nothing I would consider fine dining. That being said, I could eat every night at the Smoky Mountain Brewery. Despite being a brewery, there is a family atmosphere to it, the food is reasonably priced, and the Velles Helles can be enjoyed by anyone. Chalets can be nice too. We stay in chalets occasionally. The only down side, and this is a down side for me, I like to walk. I do not like to drive while on vacation. For a truly walkable vacation, stay in Gatlinburg, not Pigeon Forge.