October is a great time to be in Gatlinburg- the weather is nice and the leaves are turning.
We own a week at Tree Tops and are familiar with all of the other
DVC options there. IMO, none are up to DVC standards and the area has many options available for a nice stay.
I'd suggest checking out some motels (<a href="http://www.zoders.com">Zoder's Inn</a> is one of our favorites) and <a href="http://www.mountainlaurelchalets.com">chalet rentals</a> before using an exchange.
Zoder's is right in town- you can walk easily to many things and the Nat'l Park is a short drive away. The chalets are very private and most are located on the hillsides overlooking Gatlinburg.
Tree Tops is a short drive from the downtown area and Town Square is in the downtown area. Mtn Loft and Westgate are just outside town.