Which tire has the highest Treadwear (UTQG) in size 275/55R20

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 275/55R20?

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740 - Treadwear

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

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680 - Treadwear

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

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640 - Treadwear

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

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600 - Treadwear

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

 Nitto Dura Grappler Highway Terrain Light Truck Tire - UTQG: 600AB - Tire Rating: 0

 Nitto Terra Grappler G2 All-Terrain Light Truck Radial Tire - UTQG: 600AB - Tire Rating: 0

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580 - Treadwear

 Goodyear Wrangler TrailRunner AT - UTQG: 580AB - Tire Rating: 0

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520 - Treadwear

 Pirelli Scorpion STR - UTQG: 520AB - Tire Rating: 3.57

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

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500 - Treadwear

 Yokohama Geolandar A/T-S G012 - UTQG: 500AB - Tire Rating: 4.52

 Yokohama Geolandar H/T-S G051 - UTQG: 500AB - Tire Rating: 4.3

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460 - Treadwear

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

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440 - Treadwear

 Pirelli Scorpion ATR - UTQG: 440AB - Tire Rating: 4.04

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420 - Treadwear

 Nitto NT420S All-Season Tire - UTQG: 420AA - Tire Rating: 0

 Yokohama Parada Spec-X - UTQG: 420AA - Tire Rating: 4.55

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400 - Treadwear

 Achilles Desert Hawk UHP - UTQG: 400AA - Tire Rating: 4.63

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360 - Treadwear

 Maxxis MA-S2 Marauder II - UTQG: 360AA - Tire Rating: 4.08

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