Which tire has the highest Treadwear (UTQG) in size 275/70R18

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 275/70R18?


680 - Treadwear

 Continental TerrainContact A/T - UTQG: 680AA - Tire Rating: 0


640 - Treadwear

 Kumho Road Venture SAT KL61 - UTQG: 640AB - Tire Rating: 4.29


600 - Treadwear

 Nitto Terra Grappler G2 All-Terrain Light Truck Radial Tire - UTQG: 600AB - Tire Rating: 0

 Nitto Dura Grappler Highway Terrain Light Truck Tire - UTQG: 600AB - Tire Rating: 0


520 - Treadwear

 Continental ContiTrac TR - UTQG: 520AB - Tire Rating: 0


440 - Treadwear

 Pirelli Scorpion ATR - UTQG: 440AB - Tire Rating: 4.04