I like Cooper AT3. Great on road and trails, and surprisingly adequate in mud that I've got into on trails.
I've several times driven in 4" deep mud in 2wd (open diff) without airing down while crossing a muddy creek bed. Never spun yet, though there were a few minor wheel slips (like a quarter turn or so) going up the slightly inclined muddy bank on the way out.
Warning: I often edit my posts a few times to get them complete or correct errors.