Which tire has the highest Treadwear (UTQG) in size 255/65R18

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 255/65R18?


740 - Treadwear

 Continental CrossContact LX20 - UTQG: 740AB - Tire Rating: 0

 Cooper Discoverer SRX - UTQG: 740AB - Tire Rating: 0


640 - Treadwear

 Nitto NT421Q Premier All-Season Crossover - UTQG: 640AA - Tire Rating: 0


620 - Treadwear

 Cooper CS5 Ultra Touring - UTQG: 620AA - Tire Rating: 0


360 - Treadwear

 Falken Ziex ZE-912 - UTQG: 360AA - Tire Rating: 4.02