Which tire has the highest Treadwear (UTQG) in size 295/45R19

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 295/45R19?

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420 - Treadwear

 Continental ContiCrossContact UHP - UTQG: 420AAA - Tire Rating: 4.68

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320 - Treadwear

 Yokohama Advan ST - UTQG: 320AAA - Tire Rating: 4.55

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