I just voted, for the east ;D I live in the north Georgia mountains and east Tennessee and western North Carolina are my weekend riding and camping areas. Of course, there's a ton of great forest roads and October is a good time.
In the past (2010), I've stayed at
http://ironhorsenc.com/ for a bike rally and I loved it. First of all, you can't beat the location. They've got food - breakfast (daily) and dinner (Wed-Sun) - lunch on your own, a place for tent campers, cabins, bunkhouses, RVs, and on up from there, hot showers, ice, coolers (I think it's a dry county, so you have to bring your own beverages), etc. This is a really nice place and it's popular. They host all types of bike events from dual sports to cruisers.
There are a few other places in east TN and / or western NC, that could host our event, but this is likely the nicest.