None of the Above. I have ridden all of the tires mentioned, and prefer the Conti Attack/Force combination. I have put them on 3 of my friends bikes and all are converted. The Grand Prix are good tires also, but I still love the Attack/Force the best.

The only thing I don't understand is the loyalty to the Pro Race 2. I have never had pinch flats before running them. I had 4 flats in 200 miles, several just from running over a piece of gravel. I got rid of them and got back on my contis. Just bought 3 sets for the summer.