New England is a great idea, you may end up with a larger crowd if you move the rally a bit to the left on the map.
Still like the SE Ohio area.
I left Detroit Saturday morning, there's a ton of excellent roads(many freshly blacktopped) I've been riding on my way down to Pigeon Forge.
Coshocton, Zanesville, Wheeling, Pittsburgh, the area is filled with lots of twisties that can be run so much faster that route 129 in Deals Gap.

But then, any road that isn't in Lower Michigan is a good road.