I rode Tennessee thru Oklahoma in August 2009. I would not bother with Tennessee. It is mostly paved and a lot of it has a "suburban - used to be rural" feel. Arkansas is the best state on the eastern TAT. Has both sandy lowlands in the delta and nice forest service roads in the Ozark Mountains. Mississippi is good too, riding on top of the levys is an experience not to be missed. I really enjoyed Oklahoma, but I seem to be in the minority. Some of the sections are very straight for miles and miles, but there is enough muddy and loose stuff on the roads to keep you interested. When you get to the part with the curvy roads, rolling hills, and free range cattle, it is just beautiful. Is snow a problem in the Ozark Mountains in the beginning of December? I really don't know. Make sure you have good cold weather riding gear.