Which tire has the highest Treadwear (UTQG) in size 245/50R18

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 245/50R18?

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700 - Treadwear

 Continental PureContact - UTQG: 700AA - Tire Rating: 0

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500 - Treadwear

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

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

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

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400 - Treadwear

 Goodyear Eagle LS-2 - UTQG: 400AA - Tire Rating: 3.75

 Hankook Optimo K415 - UTQG: 400AA - Tire Rating: 4.61

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280 - Treadwear

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

 Continental ContiSportContact 5 - UTQG: 280AAA - Tire Rating: 0

 Maxxis MA35 Victra Asymmet - UTQG: 280AAA - Tire Rating: 4.75

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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

 Michelin Pilot Primacy - UTQG: 240AAA - Tire Rating: 4.34

 Dunlop Sp Sport Maxx TT - UTQG: 240AAA - Tire Rating: 4.69

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

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180 - Treadwear

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

 Yokohama Advan Sport Z.P.S (V103S) - UTQG: 180AAA - Tire Rating: 4.38

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140 - Treadwear

 Bridgestone Turanza ER30 - UTQG: 140AA - Tire Rating: 3.55

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