I would go with Storamin on this one, and get 4 winters, if you can afford it. That way, you can use the same 4 tires for however long. It will even itself out. Rather than buying 2 new this year, then 2 new next year, and so on, just by 4 new winters, every couple years. You won't have to worry about treadpatterns, different makes/manufactureres, etc. Of course, that's IF you can afford it.