Narrower tires cut through the mud and snow better like a pizza cutter and the treads will clear of mud a bit easier so if your in the mud in snow a lot id go with a narrower tire the treads on a wide tire will clog up with mud a lot more and not clear as easy as a narrow tire would. If your in the dry stuff or in the rocks like Moab Utah kind of stuff id go with a wide tire because your not trying to cut through and mud really your just trying to get traction.
