Following the recommendation of a tire guy from whom I have bought tires for ~22 years, we decided on a set of Cooper Discoverer CTS tires on my wife's 2009 WK. That was a year ago, and those tires are still the best I have ever had on any Jeep. Wet and dry handling and traction are excellent, and in the snow, they do OK, too. They are light years better than the OEM Goodyears, and the warranty is 70,000 miles. That's the good news.
The bad news is that the tire shop (Tony B's in Johnson City, NY) has closed as of last month. Now I need a set for the 2009 Overland, and will (unless he opens a shop elsewhere or goes to work elsewhere) have to buy from another place. I feel so... dirty.