If you've got some cash, keep a set of deticated summers then get the Nokian WRs. They are winters that will drive more like all seasons and live just as long. That was my plan, however I think I'll end up with just sticking with all seasons.
I would suggest you get some good all seasons (a higher speed rating) and use them in the winter. Burn up the good summers in the next summer(s) and you can eventually just keep the all seasons on. Also being AWD, you have little need for winters here, and they would really just wear down quickly in our mild climate and dry roads.
All seasons are fine for 99% of winter driving here, but summers could give you some troubles in hilly areas.
Good luck and keep us updated.