Ok, first, I learned to drive in Toronto, so I am VERY...did you get that? VERY...familiar with black ice. I understand that driving on ice regardless of 4 wheel drive, AWD, or 2 wheel drive, you can't stop...I get that, I really do (I also ice race on weekends here in CO). I was talking about driving on snow, snow (here anyway, can't speak for Atlanta...my condolences by the way) actually gives me traction on the roads. If I'm driving in snow in another area of the country (don't usually have occasion to do that but it happens) then I drive much more cautiously, as conditions dictate.
We've had almost a month of snow, here, and even the people that have moved here from warmer climates have figured out that you can drive somewhat normally on snow and not have your vehicle spontaneously combust.