Your last question about AT vs MT...if mud is your thing, the MT is the ticket. I have the BFG MTs on a second set of 15" rims. They clean real well, which is a necessity in thick mud. The X doesn't develop enough power to spin the tires clean when it get deep and thick. On the other hand, the MTs will dig you up to your axle quicker than shit in sand, crusty snow, certain other situations. THe ATs would be better there. Bottom line, the MTs are made to evacuate material, and the ATs are made to grip material. Other mud terrains you may consider are the TRXUS from interco. They're relatively cheap, are siped and thus better in the snow, and have very thick side walls for durability. Just another option.