Which tire has the highest Treadwear (UTQG) in size 235/30R20

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 235/30R20?

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400 - Treadwear

 Achilles 2233 - UTQG: 400AAA - Tire Rating: 4.27

 Achilles ATR Sport - UTQG: 400AAA - Tire Rating: 4.57

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320 - Treadwear

 Kumho Ecsta SPT KU31 - UTQG: 320AAA - Tire Rating: 4.17

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300 - Treadwear

 Falken FK452 - UTQG: 300AAA - Tire Rating: 4.63

 Toyo Proxes 4 - UTQG: 300AAA - Tire Rating: 4.26

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280 - Treadwear

 Dunlop SP Sport 01 - UTQG: 280AA - Tire Rating: 4.24

 Toyo Proxes T1R - UTQG: 280AAA - Tire Rating: 4.65

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260 - Treadwear

 Nitto Invo Luxury Sport Ultra High Performance Tire - UTQG: 260AAA - Tire Rating: 0

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240 - Treadwear

 Dunlop SP Sport Maxx - UTQG: 240AAA - Tire Rating: 4.56

 Toyo Proxes Sport - UTQG: 240AAA - Tire Rating: 0

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