I drive a moderately modified Subaru WRX w/ ~300hp. I have driven in some of the worst storms (incl. snow storms). And have made it through with little to no worry. The Subaru manual gearbox AWD system is a no buzzword laden viscous setup that you can trust. It permits very little slip to occur before the viscous units lock up the diffs. What this means is the car goes where you point it, even when other cars either can't get moving, or under/over steering heavily. I fully believe that unless you get MASSIVE ammounts of snow (>4" high), that an AWD car/wagon will serve much more than a top heavy SUV unless you absolutely need the storage space (most people don't).
-chris
-chris