Which tire has the highest Treadwear (UTQG) in size 275/60R15

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 275/60R15?


440 - Treadwear

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

 Dunlop SP Sport GT - UTQG: 440AA - Tire Rating: 4.25


420 - Treadwear

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

 Toyo Proxes ST - UTQG: 420AA - Tire Rating: 4.58

 Marshal Matrac STX KL12 - UTQG: 420AA - Tire Rating: 4.66

 Hankook Ventus ST RH06 - UTQG: 420AA - Tire Rating: 4.75

 Toyo Proxes ST 2 - UTQG: 420AA - Tire Rating: 4.43

 Kumho Ecsta STX KL12 - UTQG: 420AA - Tire Rating: 4.5


400 - Treadwear

 BFGoodrich Radial T/A - UTQG: 400AB - Tire Rating: 3.94