The Hankook V12s are great tires and seem to last forever. The PSS are supposed to be great as well, but they do cost more.
Honestly, if you're not on the track then I really don't see too much of a difference performance wise. I always see people on here comparing their new tires by doing a "canyon run" or "twisties". Come on... that's kind of a joke. Any difference felt in grip could easily be attributed to the fact that it's a newer tire. Unless you're hitting their limits repeatedly it's difficult to tell. Ride comfort is a different story.