People seem to LOVE the Pilots, both Road and Power. I haven't used either, but I'll be spending $$$ on a pair of Pilot Power 2CT in a month or so.
For what it's worth, all the reviews and comparos I've read seems to say that the 2CTs are just as good or better than the Corsas, depending on what you're looking for in a tire. Pilots have better wet traction, better mileage. Corsas have slightly better dry grip.