My home park too, I wish they would utilise the huge empty lot in the back and put in a Kingda Ka, or better yet refurbish the Georgia Cyclone contracting RMC to turn it into the Georgia Twisted Cyclone. My friend tried the VR on Daredevil and it never worked. I think the park has a height limit on...
Smoothest would probably be Dare Devil Dive @ SFOG. It's so smooth to the point of relaxing. Roughest would be Rebel Yell @ Kings Dominion. I had a horrible time on that ride, it was such a weird feeling.