I’d considered the 4WD Yaris Cross, but unfortunately the ‘4WD’ system only has a 5HP electric motor and also only works up to 20mph.
I have the Hybrid RAV4 AWD and the rear axle electric motor is a little more powerful than that, but even so, you are very well aware you aren't driving a Landcruiser. The point really is it's there when you need it, for traction correction, grip in tricky conditions and whatnot. As for snow, it's not the driven wheels that matter so much as the grip on the tyres. I now have Nokian All Season tyres on all round. The Yaris will suit me better than the RAV4 as I no longer have need for such a large car. But the HRV could well be the better package. Or saving money and sticking with what I have. Given the RAV4 can achieve up to 50mpg+, I would have to save a lot of money on fuel to cover the cost of changing cars.