Which tire has the highest Treadwear (UTQG) in size 165/55R14

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 165/55R14?

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320 - Treadwear

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

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300 - Treadwear

 Yokohama A.DRIVE - UTQG: 300AA - Tire Rating: 4.43

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