I live an hour from Dollywood and have been many times. I even have season passes this year. If you are expecting a smaller version of Disney, you are going to be DISAPPOINTED.
However, it is a wonderful theme park in it's own way. There is a lot of music (think country and gospel here), some shows (typically musicals, they had a Veggie Tales show and a dog talent show this summer), a few thrill rides, county fair type rides, craft demos (glass blowing, etc.), an eagle sanctuary and bird show, Dolly museum, and much more. Check their website for further details.
You can fly into Knoxville's airport (TYS) and Dollywood is about an hours drive. There are tons of hotels in the very touristy area around Dollywood.
It is especially nice to visit in December when they have all the special decorations and Christmas shows.
Peggy