I've had the Michelin LTX A/T's (31") on for about two years now, maybe 12K miles, and I can't see a bit of wear yet. The nubs are still intact. I've had these before on other vehicles and they wear like iron. Had 80K on a set once and they still had more than 1/2 the tread left. They may cost a bit more up front than the others, but outlast most everything else. They are decent in snow (not that I care that much since we seldom see it), and outstanding on wet or dry pavement. They are very quiet tires too.