On the street (including heavy twisty/canyon riding) either one is awsome. For track and street, definately Pilot Power. I've used both on street and track and have to say the Pilot Power. I did 4 trackdays in the "race" group on set of Pilot Powers and still sold them for $100 afterwords.
I have the Dunlop 208's on my bikes.......... I have heard that the pilot's are the best and the Diablo's are right behind them. I can't wait for the 208's to
wear out so I can go with the Pilot's......... :thumbup: