Another thing to think about is traction control and stability management. It's different on different vehicles, my Discovery traction control is when a when spins, ABS engages, it has nothing to do with saving a slide. Stability control/management is where it uses the ABS to slow the opposite wheel in a skid, but again this is different on vehicles, so it's something to look into. (I don't like any vehicle making decisions for me, personally).
As everyone has said the bigger the vehicle the more time to stop/skid. The most dangerous thing in winter is a woman with a 4wd SUV
