BMB was the first thing I thought of. Some people wish it would come back, but Bill O. tells me it was an awful route, which is something coming from him. I remember seeing him smiling away on the section of the terror of carolina ride that gave it it's unofficial nickname. 100 miles of no-shoulder bumper to bumper traffic going 60mph. I asked him about that later and he said it was fine.
I was talking to Bill about the rumor that the BMB route is for sale for big $. Can't really stop an organizer from running it, although the recently held New York Montreal New York is probably a better route.