I have New England Covered:
Vermont, Route 100. Drive around the mountains, lots of twisties, but cops are numerous around Stratton and Okemo
VT-NH-ME Route 2. Absolute Sex with ZSP since they put in the truck lanes. I did it in my mom's Touareg v6 and averaged over ... well, a lot. Its a GREAT trip with great scenery.
NH- Kangamangus HWY. Not too fast, just scenic and full of tourists. Closed in winter, rivals passes out west.
ME Route 16/27. Really can't go wrong, driving through the mountains of Western Maine, pass Sugarloaf. One or two staties on duty in the entire county at any given time and AFAIK, they only use X. Easy to spot, and 55 all the time. REALLY TWISTY.

This is my weekend pilgrimage, its a hoot.
This one was a happy accident, too, same origin and destination, but its a similar and maybe twistier route.