Me and my 2 riding buddies just planned a trip yesterday for 9/16-9/20. We plan to be around the Dragon during the same timeframe as your group. We plan to do the Snake again too. We did this same 5-day, 4-state trip in early May, so we're doing it again. Hopefully we'll see you guys and ride together for a quick trip thru the Dragon. Sounds like fun.
We'll be riding: 650R, Katana 600, and a Suzuki Intruder 800 - so look for us. We're the old guys that need to lose weight.
Edit: As for the Snake - I've only ridden there twice. Loved it both times. I may be wrong about this, but there are less cops on The Snake if that matters. Also less traffic - at least during weekdays. Deal's Gap always has more riders. As for 1 being BETTER than the other - I don't really have any comments on that other than BOTH are great to ride. The Snake is LONGER with more curves, and it has some pretty darn good curves. At The Snake's local gas station, they have both 'Venomous' and 'non-venomous' gas.