Which tire has the highest Treadwear (UTQG) in size 235/65R18

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 235/65R18?

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780 - Treadwear

 Cooper CS5 Grand Touring - UTQG: 780AA - Tire Rating: 0

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740 - Treadwear

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

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

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680 - Treadwear

 Continental ContiCrossContact LX - UTQG: 680AB - Tire Rating: 4.17

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640 - Treadwear

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

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600 - Treadwear

 Cooper Adventurer H/T CUV - UTQG: 600AB - Tire Rating: 0

 Yokohama Geolandar SUV G055 - UTQG: 600BA - Tire Rating: 0

 Cooper Discoverer LSX Plus - UTQG: 600AB - Tire Rating: 0

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500 - Treadwear

 Kumho Solus KL21 - UTQG: 500AA - Tire Rating: 4.52

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480 - Treadwear

 Continental CrossContact LX Sport - UTQG: 480AA - Tire Rating: 0

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360 - Treadwear

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

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