I recently switched to the Pilot Power from the Diablo Corsa. My first impressions were: I hated the Power. There was no front end feedback and they were not very confidence inspiring despite the fact that I was using almost all of the rear tire. So I fiddled with front and rear rebound and compression settings and voila. The front end feel is back and the side grip is incredible. Did I say incredible? I meant phenomenal!
The Corsa took less setup time. Front end feel was great but very harsh over bumps. I tried adjusting the suspension but I could not dial it out. The rear ride was also a bit harsh but not as bad as the front. Side grip is very good but, in my opinion, not as good as the Power.
Both are great tires. The Michelin are a bit less expensive, and for my riding style, inspire even more confidence.