I wanna buy tyres for my crossover and have three options: Nexen nfera Supreme(N5000 Platinum) ($175), Nankang SP-9 Cross-Sport ($115), and Giti Sport S2 Suv ($125). I can’t decide which one should I go with, as comfort and smooth driving is the number one priority for me. AND does anyone know what is the tread depth of Giti Sport s2 SUV with 255/45/20 size?