Concur...

Auto lockers are incredibly dangerous on ice\snow. First time it unloads on you I will pretty much guarantee you will be pulling to the side of the road to change your underwear. Not to mention, they will add a considerable amount of wear to your rear tires and will cause banging\popping from your rear end.

Open, LS or selectable lockers are the ONLY way to go for a vehicle you put a lot of miles on or drive daily.