The wheel diameters and ground clearance are inadequate on both of those vehicles. Freezing to death in a vehicle trapped in snow is a poor tradeoff for saving a little money on what you really should have purchased. It's easy to snag a vehicle like that in a "high centered" condition. Nothing short of a tow truck will pull you out.
The vehicles I just described are more for drivers in the West and southern states, where dealing with snow is much less of a problem.
But where winter snows are a problem, we'll be seeing a lot more smaller 4WD SUVs replace the large gas-guzzling SUVs. That's why the Honda CR-V and Toyota RAV4 have done quite well in the US market. And Ford is working on bringing a version on this model:
Ford Kuga
...to the US market within a few years as a replacement for the Ford Escape small SUV.