Which tire has the highest Treadwear (UTQG) in size 235/60R15

It's time to buy new tires for my car, but I want to buy a tire that lasts longer than the original brand, OEM. Which tire has the highest Treadwear in this size 235/60R15?


440 - Treadwear

 Cooper Cobra Radial G/T - UTQG: 440AB - Tire Rating: 4.43


420 - Treadwear

 Kumho Road Venture ST KL11 - UTQG: 420AB - Tire Rating: 4.56