I have no opinion on which states have the best quality of road surfaces. The best road I have been on for curves, low traffic, scenery, and road surface quality is the Cherohala Skyway in both TN and NC. It does not have super tight turns like the Dragon. These make me feel like I am back in Motorcycle Safety Foundation class doing figure eights in a small box. Instead, it is full of great sweeping curves where you can drag steel (on a VTX) at 60 mph.