I just purchased a set of the Falken Rocky Mountains from Discount Tire ... $704 out the door. LT265/75r16, 3 ply sidewalls, E load, 32" overall diameter. Good reviews online. Just took them offroad this weekend, loose rocks, inclines, etc ... did great. Real quiet on the road too. Several adds at WalMart beyond the price of the tire ... I looked at those Wrangler Authorities as well. Low $800s for the C load tire, low $900s for the E load. The complaint online with the C load Authority was the thin sidewall. The absolute cheapest AT tire I found was the Hankook at Discount Tire for $108 in the 265/75r16. But, it's not as aggressive looking in person, and it's a C load. The Falken seemed like a much better buy short of a BFG KO.
Hope that helps.