Which tire has the highest Treadwear (UTQG) in size 265/45R20

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 265/45R20?

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480 - Treadwear

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

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460 - Treadwear

 Nexen Roadian HP - UTQG: 460AA - Tire Rating: 4.13

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420 - Treadwear

 Toyo Proxes ST 2 - UTQG: 420AA - Tire Rating: 4.43

 Toyo Proxes ST - UTQG: 420AA - Tire Rating: 4.58

 Marshal Matrac STX KL12 - UTQG: 420AA - Tire Rating: 4.66

 Kumho Ecsta STX KL12 - UTQG: 420AA - Tire Rating: 4.5

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360 - Treadwear

 Continental Conti4x4Contact - UTQG: 360AA - Tire Rating: 3.94

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320 - Treadwear

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

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280 - Treadwear

 Continental ContiSportContact 2 - UTQG: 280AAA - Tire Rating: 4.46

 Continental ContiSportContact 5 - UTQG: 280AAA - Tire Rating: 0

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220 - Treadwear

 Pirelli Pzero Rosso - UTQG: 220AAA - Tire Rating: 4.36

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