I've found most of the wheeling up there has a good rock base to it...and the st's can't be beat on the snow and icy roads. If you've found a good mud hole and like to wheel there most, you should probly go with something else. The st's will get around in the mud but not as good as some of the above mentioned. Other than the coops, the best choice IMO would be the toyos...Buddy of mine has a set and loves them...got awesome mileage from them and they wheel good (cept his dodge can't go where old blue goes
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Another note: the best tire dealer in our area is interwest tire behind the super 8 in Belgrade. They deal with cooper and toyo and have had the most excellent customer service every time I have delt with them. Such good customer service is rare these days. They deserve a BIG thumbs up. Good Luck....out