Which tire has the highest Treadwear (UTQG) in size 185/60R15

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 185/60R15?

800 - Treadwear

 Continental ControlContact Tour A/S - UTQG: 800AB - Tire Rating: 0

780 - Treadwear

 Cooper CS5 Grand Touring - UTQG: 780AA - Tire Rating: 0

680 - Treadwear

 Kumho Solus KR21 - UTQG: 680AB - Tire Rating: 4.5

600 - Treadwear

 BFGoodrich Advantage T/A Sport - UTQG: 600AA - Tire Rating: 0

520 - Treadwear

 Sonar SX-608 - UTQG: 520AA - Tire Rating: 4.63

 Nankang XR611 - UTQG: 520AA - Tire Rating: 4.13

500 - Treadwear

 Kumho Solus KL21 - UTQG: 500AA - Tire Rating: 4.52

 Continental ProContact TX - UTQG: 500AA - Tire Rating: 0

 Westlake SP06W - UTQG: 500AA - Tire Rating: 0

 Nexen CP672 - UTQG: 500AA - Tire Rating: 4.57

480 - Treadwear

 Bridgestone Ecopia EP422 - UTQG: 480AA - Tire Rating: 0

 Kumho Solus KH25 - UTQG: 480AA - Tire Rating: 4.26

 Continental ContiPowerContact - UTQG: 480AB - Tire Rating: 4.11

460 - Treadwear

 Federal Formoza FD1 - UTQG: 460AA - Tire Rating: 4.58

 GT Radial Champiro-128 - UTQG: 460AA - Tire Rating: 4.1

 Tornel Direccional - UTQG: 460AB - Tire Rating: 4.25

440 - Treadwear

 Goodride SP06 - UTQG: 440AB - Tire Rating: 3.49

 Kumho Solus KH18 - UTQG: 440AA - Tire Rating: 4.19

 General Tires Evertrek RT - UTQG: 440AA - Tire Rating: 3.88

 Cooper CS3 Touring - UTQG: 440AA - Tire Rating: 0

 Toyo Celsius - UTQG: 440AB - Tire Rating: 0

 Maxxis MA-P1 - UTQG: 440AA - Tire Rating: 4.23

 Kenda Komet SPT-1 KR10 - UTQG: 440AA - Tire Rating: 4.4

420 - Treadwear

 Sailun Atrezzo SH402 - UTQG: 420AA - Tire Rating: 4.01

 Kumho Ecowing ES01 KH27 - UTQG: 420AA - Tire Rating: 4.63

 Barum Brillantis 2 - UTQG: 420AB - Tire Rating: 4.14

 Federal SS 657 - UTQG: 420AA - Tire Rating: 4.45

 Michelin Energy XM2 - UTQG: 420AA - Tire Rating: 4.44

400 - Treadwear

 Michelin Energy Saver - UTQG: 400AA - Tire Rating: 4.53

 Jinyu YH12 - UTQG: 400AA - Tire Rating: 3.78

 Michelin Energy 3 - UTQG: 400AA - Tire Rating: 4.42

 Nexen CP661 - UTQG: 400AA - Tire Rating: 4.05

 Ovation EcoVision VI-682 - UTQG: 400AA - Tire Rating: 4.4

 Marshal Matrac MH11 - UTQG: 400AA - Tire Rating: 4.43

 Nexen CP641 - UTQG: 400AA - Tire Rating: 4.22

 Hankook Optimo K415 - UTQG: 400AA - Tire Rating: 4.61

 Kumho Solus KH17 - UTQG: 400AA - Tire Rating: 4.16

380 - Treadwear

 Landsail LS388 - UTQG: 380AA - Tire Rating: 0

 Hankook Optimo H426 - UTQG: 380AA - Tire Rating: 3.92

360 - Treadwear

 Horizon HH301 - UTQG: 360AA - Tire Rating: 0

 Aeolus AH01 - UTQG: 360AA - Tire Rating: 4.31

 Falken Ziex ZE-912 - UTQG: 360AA - Tire Rating: 4.02

 Sonny SU830 - UTQG: 360AA - Tire Rating: 4.31

340 - Treadwear

 Kumho Solus KH15 - UTQG: 340AAA - Tire Rating: 4.18

 Kumho Ecsta HM KH31 - UTQG: 340AAA - Tire Rating: 4.26

 Continental ContiExtremeContact DW - UTQG: 340AAA - Tire Rating: 4.58

 Goodyear Efficient Grip - UTQG: 340AA - Tire Rating: 3.86

320 - Treadwear

 GT Radial Champiro-228 - UTQG: 320AA - Tire Rating: 3.63

 Goodyear Eagle Excellence Aquamax - UTQG: 320AA - Tire Rating: 4.22

 Bridgestone Turanza ER300 - UTQG: 320AA - Tire Rating: 3.45

 Goform G520 - UTQG: 320AA - Tire Rating: 3.89

 Fate AR-360 Sentiva - UTQG: 320AB - Tire Rating: 3.95

 Rotalla Radial F108 - UTQG: 320AA - Tire Rating: 0

 Marshal Matrac XM KH35 - UTQG: 320AA - Tire Rating: 4.38

300 - Treadwear

 Goodyear Eagle Sport - UTQG: 300AA - Tire Rating: 3.15

 Yokohama A.DRIVE - UTQG: 300AA - Tire Rating: 4.43

 Yokohama C.DRIVE - UTQG: 300AA - Tire Rating: 4.38

 Firestone Firehawk 900 - UTQG: 300AA - Tire Rating: 4.21

 Hankook Optimo K424 MEO2 - UTQG: 300AA - Tire Rating: 3.76

280 - Treadwear

 Dunlop SP Sport 01 - UTQG: 280AA - Tire Rating: 4.24

 Firestone FH-700 - UTQG: 280AA - Tire Rating: 4.22

 Continental ContiPremiumContact 2 - UTQG: 280AAA - Tire Rating: 4.46

260 - Treadwear

 Pirelli P7 - UTQG: 260AAA - Tire Rating: 3.81

240 - Treadwear

 Goodyear Eagle NCT5 - UTQG: 240AA - Tire Rating: 3.71

 Goodyear Excellence - UTQG: 240AA - Tire Rating: 3.66

220 - Treadwear

 tri-Ace Steady-33 - UTQG: 220AB - Tire Rating: 0

 Accelera RHO - UTQG: 220BA - Tire Rating: 4.81