Which tire has the highest Treadwear (UTQG) in size 205/75R15

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 205/75R15?

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680 - Treadwear

 Kumho Solus KR21 - UTQG: 680AB - Tire Rating: 4.5

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620 - Treadwear

 Hankook Mileage Plus II H725 - UTQG: 620AB - Tire Rating: 5

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500 - Treadwear

 Toyo Open Country A/T - UTQG: 500AB - Tire Rating: 4.52

 Kumho Road Venture AT KL78 - UTQG: 500AB - Tire Rating: 4.39

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480 - Treadwear

 Firestone Destination A/T - UTQG: 480AB - Tire Rating: 4.27

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440 - Treadwear

 Cooper Trendsetter SE - UTQG: 440AB - Tire Rating: 0

 Toyo Celsius - UTQG: 440AB - Tire Rating: 0

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

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340 - Treadwear

 Goodyear Wrangler RT/S - UTQG: 340AB - Tire Rating: 4.79

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