I replaced them with Duratracs, which are ATs, and to be honest, the BFGs drove nicer (and were more quiet, which makes no sense given that the BFGs are mudders). But that being said, the Duratracs are a good inch and a half wider, 5lbs heavier per tire and are load D, versus the BFG load C tires, which are much better suited to the JK.
I did not put much mileage on the BFGs as you can tell, but I really was surprised how nice-driving they were.
Maybe other BFG drivers can chime in???