As of right now, the Cooper AT3 is still the #1 AT tire on the market. Hands down the best tire and oddly it's one of the less expensive ones available too. It easily out performs other tires in rain, snow, dirt, pavement, and light muddy conditions. Awesome mileage warranty. Made in USA. Silent on the road. Definitely the best out of the dozens I've used. Just bought a new set of them today because they are so awesome.
'92 YJ - heavily modded
'96 ZJ - heavily modded
'05 KJ CRD Limited - 370 lb./ft. from a 4-cylinder and trail ready. Pure awesomeness.
'11 Mango Tango JKU Sport - Mods
'12 Dozer JKU Sport S - 6-speed - ACE rock rails - Max Tow package - Daystar spacers - 33x12.50 Duratracs