Which tire has the highest Treadwear (UTQG) in size 225/70R15

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 225/70R15?

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680 - Treadwear

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

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620 - Treadwear

 Pirelli P3000 - UTQG: 620AA - Tire Rating: 4.23

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600 - Treadwear

 Yokohama Geolandar SUV G055 - UTQG: 600BA - Tire Rating: 0

 Kumho Road Venture APT KL51 - UTQG: 600AA - Tire Rating: 4.25

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520 - Treadwear

 Nexen Roadian HT SUV - UTQG: 520AB - Tire Rating: 4.79

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500 - Treadwear

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

 Nexen Roadian AT - UTQG: 500AB - Tire Rating: 4.5

 Nexen Roadian A/T RV - UTQG: 500AB - Tire Rating: 4.13

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

 Michelin LTX M/S - UTQG: 500AB - Tire Rating: 4.52

 Maxxis AT-771 Bravo - UTQG: 500AA - Tire Rating: 4.19

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460 - Treadwear

 Dunlop Grandtrek AT3 - UTQG: 460AB - Tire Rating: 4.35

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440 - Treadwear

 Cooper Cobra Radial G/T - UTQG: 440AB - Tire Rating: 4.43

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

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

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420 - Treadwear

 Kumho Road Venture ST KL11 - UTQG: 420AB - Tire Rating: 4.56

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400 - Treadwear

 Ovation EcoVision VI-682 - UTQG: 400AA - Tire Rating: 4.4

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360 - Treadwear

 Achilles Multivan - UTQG: 360AA - Tire Rating: 3.88

 Maxxis MA-S1 Marauder - UTQG: 360AB - Tire Rating: 4.04

 GT Radial MaxWay - UTQG: 360AB - Tire Rating: 4.47

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