Which tire has the highest Treadwear (UTQG) in size 255/55R19

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 255/55R19?

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680 - Treadwear

 Continental TerrainContact A/T - UTQG: 680AA - Tire Rating: 0

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640 - Treadwear

 Toyo Open Country H/T - UTQG: 640AB - Tire Rating: 4.69

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

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560 - Treadwear

 Nitto Motivo All-Season Ultra High Performance Tire - UTQG: 560AA - Tire Rating: 0

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520 - Treadwear

 Cooper Zeon LTZ - UTQG: 520AB - Tire Rating: 0

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500 - Treadwear

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

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440 - Treadwear

 Goodyear Wrangler HP - UTQG: 440AA - Tire Rating: 3.77

 Michelin Latitude Tour HP - UTQG: 440AA - Tire Rating: 4.3

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420 - Treadwear

 Maxxis MA-Z4S Victra - UTQG: 420AAA - Tire Rating: 4.11

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

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

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400 - Treadwear

 Pirelli Scorpion Zero - UTQG: 400AA - Tire Rating: 3.53

 Nexen Roadian 542 - UTQG: 400AAA - Tire Rating: 4.21

 Sunitrac Focus 9000 - UTQG: 400AA - Tire Rating: 4.32

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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

 Kumho Ecsta X3 KL17 - UTQG: 320AAA - Tire Rating: 4.63

 Marshal Matrac X3 KL17 - UTQG: 320AAA - Tire Rating: 4.54

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280 - Treadwear

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

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240 - Treadwear

 Accelera IOTA - UTQG: 240AAA - Tire Rating: 4.25

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