Heh, I drove through 6 inches of snow in KY on roads that were not plowed with Quattro AWD. I had Z-Rated tires, too!
AWD > All
RWD ain't bad, but if you've got a car with traction control it will piss you off. I was driving the Benz today, and it was raining. If you kick it around a corner Mr. ESP wants to kick in, so you have to turn that bastard off, or it will just go slugggggggh if you lose traction.
You know, I like traction control if I'm driving in a blinding rainstorm, but if the road is just wait get away! I drove a RWD Mustang with a ton of power for a long time, so sliding the back end out is almost a hobby. 🙂