Which tire has the highest Treadwear (UTQG) in size 255/30R21

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 255/30R21?


280 - Treadwear

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


180 - Treadwear

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