Which tire has the highest Treadwear (UTQG) in size 225/50R15

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 225/50R15?


400 - Treadwear

 Kumho Ecsta AST KU25 - UTQG: 400AA - Tire Rating: 3.93


340 - Treadwear

 Kumho Ecsta XT KU37 - UTQG: 340AAA - Tire Rating: 4.35


300 - Treadwear

 Toyo Proxes 4 - UTQG: 300AAA - Tire Rating: 4.26


280 - Treadwear

 Toyo Proxes T1R - UTQG: 280AAA - Tire Rating: 4.65


60 - Treadwear

 Yokohama Advan A048 - UTQG: 60AA - Tire Rating: 3.69