Which tire has the highest Treadwear (UTQG) in size 205/55R17

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 205/55R17?

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500 - Treadwear

 Continental ProContact TX - UTQG: 500AA - Tire Rating: 0

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460 - Treadwear

 Nexen CP671 - UTQG: 460AA - Tire Rating: 3.88

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420 - Treadwear

 Kumho Ecowing ES01 KH27 - UTQG: 420AA - Tire Rating: 4.63

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400 - Treadwear

 Continental ContiProContact - UTQG: 400AAA - Tire Rating: 4.23

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320 - Treadwear

 Nankang AS-1 - UTQG: 320AA - Tire Rating: 4.46

 Michelin Primacy 3 - UTQG: 320AA - Tire Rating: 4.67

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300 - Treadwear

 Bridgestone Dueler H/P Sport - UTQG: 300AA - Tire Rating: 4.09

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280 - Treadwear

 Continental ContiSportContact - UTQG: 280AA - Tire Rating: 3.75

 Continental ContiPremiumContact 2 - UTQG: 280AAA - Tire Rating: 4.46

 Continental ContiSportContact 3 - UTQG: 280AAA - Tire Rating: 4.68

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180 - Treadwear

 Yokohama Advan Sport V103 - UTQG: 180AAA - Tire Rating: 4.38

 Yokohama Advan Sport - UTQG: 180AAA - Tire Rating: 4.23

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