Which tire has the highest Treadwear (UTQG) in size 295/30R22

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 295/30R22?

---

460 - Treadwear

 Nexen Roadian HP - UTQG: 460AA - Tire Rating: 4.13

---

420 - Treadwear

 Continental ContiCrossContact UHP - UTQG: 420AAA - Tire Rating: 4.68

 Kumho Ecsta STX KL12 - UTQG: 420AA - Tire Rating: 4.5

 Toyo Proxes ST - UTQG: 420AA - Tire Rating: 4.58

---

400 - Treadwear

 Pirelli Scorpion Zero - UTQG: 400AA - Tire Rating: 3.53

---

320 - Treadwear

 Yokohama Advan ST - UTQG: 320AAA - Tire Rating: 4.55

---