I’m currently running Kumho ECSTA STXs in 265-60-18 after running Pirelli Scorpion Zeros in 285-55-18 size. I liked the looks of the Pirellis, but didn’t feel that they handled as well as the Kumhos. I think they were just too wide for the stock 7-inch rims. The Pirellis were worn out after 28K miles. I’ve got 25K on the Kumhos and they have plenty of tread left. I wouldn’t run either tire in the snow. I have an extra set of stock wheels with Bridgestone Blizzak DM-Z3s in 265-60-18. I haven’t had much need to use the Blizzaks, so I can’t report on their long-term performance, but I have several hundred miles on them and they did feel more confident in patches of snow and slush I encountered during my commutes. I’ve never had to run the Kumhos in snow, but I did run the original Bridgestone Duelers and the Pirellis in the snow and ended up in a ditch with two-month-old Pirellis. I don’t think the wider tires do as well in the snow as the narrower tires.