I definitely want to go with the 20"s , and I really like the Cooper Zeon 275/55R20 but they are approx. 10 LBS heaver then the rest of the tires I was looking at . Im not liking that at all! I've had the Nitto Terra Grappler All-Terrain Tires and BFGoodrich All-Terrain T/A KO's and loved them both!! I also have to say that the BFG's I had had the best traction and had gotten the most milage out of them!!, The Nittos I had offerd Great traction but they seemed to be wearing out more quickly IMO. Im still doing some more research, and I'll keep all posted !