If you want these to handle winters, especially living in Saskatchewan, then pretty much your only option is the Nokian WR. They are the only winter rated of the bunch (in fact, the only winter rated "all-season"). Expect to pay more for these than the other choices.
"All season" is a misnomer, created by the car and tire industry together, to make cars (and replacement tires) more attractive - they are absolutely useless in winter for many reasons. You could search through the threads here for the endless discussions we've had on why - tread design, tire compounds, etc.
That said, if you plan to have dedicated winter tires, then the best choice for an all season would be the BFG Traction T/A.