Which tire has the highest Treadwear (UTQG) in size 265/70R15

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 265/70R15?

680 - Treadwear

 Continental ContiCrossContact LX - UTQG: 680AB - Tire Rating: 4.17

640 - Treadwear

 Toyo Open Country H/T - UTQG: 640AB - Tire Rating: 4.69

600 - Treadwear

 Kumho Road Venture APT KL51 - UTQG: 600AA - Tire Rating: 4.25

580 - Treadwear

 BFGoodrich Long Trail T/A Tour - UTQG: 580AB - Tire Rating: 4.63

520 - Treadwear

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

 Nexen Roadian HT SUV - UTQG: 520AB - Tire Rating: 4.79

500 - Treadwear

 Yokohama Geolandar H/T-S G051 - UTQG: 500AB - Tire Rating: 4.3

 Maxxis AT-771 Bravo - UTQG: 500AA - Tire Rating: 4.19

 Falken WPAT01 WildPeak A/T - UTQG: 500AB - Tire Rating: 4.69

 Toyo Open Country A/T - UTQG: 500AB - Tire Rating: 4.52

 Nexen Roadian AT - UTQG: 500AB - Tire Rating: 4.5

 Nexen Roadian A/T RV - UTQG: 500AB - Tire Rating: 4.13

 Yokohama Geolandar A/T-S G012 - UTQG: 500AB - Tire Rating: 4.52

 Hankook Dynapro HP RA23 - UTQG: 500AA - Tire Rating: 4.17

480 - Treadwear

 Maxxis HT-750 Bravo - UTQG: 480AB - Tire Rating: 4.36

460 - Treadwear

 GT Radial Savero AT PLUS - UTQG: 460AB - Tire Rating: 4

 Hankook Dynapro AT RF08 - UTQG: 460BA - Tire Rating: 4.69

 Dunlop Grandtrek AT3 - UTQG: 460AB - Tire Rating: 4.35

440 - Treadwear

 Goodyear Wrangler HP - UTQG: 440AA - Tire Rating: 3.77

420 - Treadwear

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

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

360 - Treadwear

 Maxxis MA-S1 Marauder - UTQG: 360AB - Tire Rating: 4.04

300 - Treadwear

 Bridgestone Dueler H/T D840 - UTQG: 300BB - Tire Rating: 3.78

180 - Treadwear

 Bridgestone Dueler HT 689 - UTQG: 180BB - Tire Rating: 0