I watched CR at Pontiac, and thought he looked a lot like Jermey in his younger days. His style is a lot different than Ricky's.
Ricky brakes hard and cuts corners short and then accelerates hard. It seems like he loves throwing the bike around, whipping the rear wheel and pivoting on the front. He can save the bike from a crash better than anyone I've ever seen, but he uses a lot of energy riding.
Chad uses momentum and tries to keep his speed up in the corners, rides smoother and was making less mistakes, while I was watching him on Saturday. He picks good lines and uses less energy.
Their both great riders, but I enjoy watching Ricky more. He keeps you on the edge of your seat wondering when he is going to biff it.