Brand new set of Goodyear Wrangler SilentArmor in 30x9.50R15/C went on the Jeep Wrangler a couple weeks ago. Goodyear rates them better than their Wrangler MT/R in the snow. Some other Goodyears on my wife's 2006 Jeep Commander. They're whatever came from the factory and have over 40,000 miles on them. We'll see how they do this winter. Not that we get much snow, but when we do we need all the help we can get to get up the hill from the house to get out of the neighborhood.
I used to run Michelins all the time, but I haven't tried them on the Jeeps. Worked well on all my other cars.