Which tire has the highest Treadwear (UTQG) in size 215/45R18

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 215/45R18?

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560 - Treadwear

 Continental SureContact RX - UTQG: 560AAA - Tire Rating: 0

 Continental ExtremeContact DWS 06 - UTQG: 560AAA - Tire Rating: 0

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540 - Treadwear

 Continental ControlContactSport A/S - UTQG: 540AA - Tire Rating: 0

 Continental ExtremeContact DWS - UTQG: 540AA - Tire Rating: 0

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520 - Treadwear

 Nankang XR611 - UTQG: 520AA - Tire Rating: 4.13

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500 - Treadwear

 Nexen CP672 - UTQG: 500AA - Tire Rating: 4.57

 Cooper Zeon RS3-A - UTQG: 500AAA - Tire Rating: 0

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480 - Treadwear

 Dunlop SP Sport LM703 - UTQG: 480AA - Tire Rating: 4.25

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320 - Treadwear

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

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

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280 - Treadwear

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

 Hankook Ventus V12 evo K110 - UTQG: 280AAA - Tire Rating: 4.02

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240 - Treadwear

 Toyo Proxes T1 Sport - UTQG: 240AAA - Tire Rating: 4.5

 Michelin Pilot Exalto 2 - UTQG: 240AA - Tire Rating: 4.57

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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

 Yokohama Advan Neova AD08 - UTQG: 180AAA - Tire Rating: 4.06

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