Which tire has the highest Treadwear (UTQG) in size 285/50R20

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 285/50R20?

---

740 - Treadwear

 Continental CrossContact LX20 - UTQG: 740AB - Tire Rating: 0

---

600 - Treadwear

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

---

520 - Treadwear

 Cooper Zeon LTZ - UTQG: 520AB - Tire Rating: 0

 Pirelli Scorpion STR - UTQG: 520AB - Tire Rating: 3.57

---

420 - Treadwear

 Marshal Matrac STX KL12 - UTQG: 420AA - Tire Rating: 4.66

 Yokohama Parada Spec-X - UTQG: 420AA - Tire Rating: 4.55

 Maxxis MA-Z4S Victra - UTQG: 420AAA - Tire Rating: 4.11

 Nitto NT420S All-Season Tire - UTQG: 420AA - Tire Rating: 0

---

400 - Treadwear

 Achilles Desert Hawk UHP - UTQG: 400AA - Tire Rating: 4.63

---

360 - Treadwear

 Maxxis MA-S2 Marauder II - UTQG: 360AA - Tire Rating: 4.08

---