Pretty simple really, I very much like the Pilot Sport 4S on my big fun car. I've had them on track, auto-x, and street miles in the heat of summer all the way to freezing rain. Quiet, grip is good (and communicates well when you are about to run out of grip), confident in the wet. Can't speak to longevity as I'm not talking about a daily drivers here.
So what's the best equivalent in a 205/50/15?