Which tire has the highest Treadwear (UTQG) in size 225/55R19

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 225/55R19?

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800 - Treadwear

 Continental TrueContact - UTQG: 800AB - Tire Rating: 0

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640 - Treadwear

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

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440 - Treadwear

 Kumho Solus KH16 - UTQG: 440AAA - Tire Rating: 4.08

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