Guess it depends on what size you are looking for....
TireRack has the 265/60R18 size in stock:
275/65R18 is a larger diameter tire, 32.1 inches versus 30.5 inches for 265/60R18.
So if that is the OEM size on your Jeep, you would need to have the computer recalibrated for the larger tire.
I was just looking into the LT275/65R18 in the Adventure Kevlar, but besides being larger it's also 10lbs heavier per tire. I just don't care to sacrifice the mileage.
When the OEM Michelins wear out, I plan to go with the 265/60R18 Adventure Kevlar.
The Adventure (in the 265/60R18 size) also has a better tread wear number. 640 versus only 500 for the DuraTrac.