Go with the Limited. Lets face it, 3.7 and 3.5, neither of them are really going to make your edge blazing fast, and its only a 20hp difference and loss of gas mileage. I am in MN as well and have an AWD limited and love it with the 18 inch wheels. Much more affordable to replace and winter is hard on wheels. Changes to the 2012 will be minimal. Also, if you dont like the shiny grill they sell paintable inserts or you can paint your own.
Hope this helps your decision