I can tell you what is not my favorite wooden coaster: The Texas Giant at Six Flags in Arlington. Riding in the back car is simply one of the most unpleasant experiences I've had in my life. I couldn't wait for it to be over.
I hear that. I've been on a number of wooded coasters that just gave me a huge headache.
And I know I've said it before, but Dollywood really is great (as is Gatlinburg/Pigeon Forge in general). I would recommend it to anyone. Far as the price; it used to be real cheap. Since they've built more big money attractions (like the Mystery Mine), the price has gone up to be about par for a major theme park.
Prices change throughout the year as with most parks. The season tickets are a steal though and if I remember correctly they have a good deal where you can get in a second day with your one day ticket for real cheap. Haven't done the second day thing in a long time though, because I had season passes.