This is the data I've collected for tires (based on others oppinions averaged)
BFG: Great All around tire, wears better than a swamper, readily available
Groud Hawgs: Great for mud and such(large tread voids) and wear like iron because of hard compound rubber
Dunlop Rover: similar to the BFG in performance, cheap, not readily available in a lot of sizes
MTR: great for rocks, super soft tread compound, wear quickly, $$
Thornbird: shat
Thats seems to be about the average of opinions around here for DD tires. /forums/images/graemlins/waytogo.gif
P.S. I've got Geolander A/T: they are good for on-road, minimal road noise, not super easy to find, good for mild off road (have yet to test in snow)