Which tire has the highest Treadwear (UTQG) in size 175/55R15

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 175/55R15?

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420 - Treadwear

 Sailun Atrezzo SH402 - UTQG: 420AA - Tire Rating: 4.01

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400 - Treadwear

 Kumho Solus KH17 - UTQG: 400AA - Tire Rating: 4.16

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

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360 - Treadwear

 Continental ContiEcoContact 3 - UTQG: 360AAA - Tire Rating: 4.03

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340 - Treadwear

 Kumho Ecsta KH11 - UTQG: 340AA - Tire Rating: 4.29

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320 - Treadwear

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

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200 - Treadwear

 Bridgestone B250 Ecopia - UTQG: 200BB - Tire Rating: 4.05

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