I've had Pirelli Scorpion Zero and Kuhmo Ecsta STX $365 per tire vs. $260 per tire for 305/40/23.

40,000k miles on the kuhmos, they were more quiet and comfortable ride and had better performance in dry weather. Another thing is the Sidewall and rim protection of the these tires are unmatched. I've gone over entire curbs, without a hitch.

20,000k miles on the Pirellis, Loud, performed better in rain.