"...you are trying to say that all AWD/4WD systems are created equal..."

Actuall, I was trying to say that they are not created equal. I shouldn't try to write late at night, I tend to make more mistakes, leave out more information, and not get my point across.

Good point on the tires. Most people have regular street tires on their AWD and 4WD vehicles, they don't want the sometimes rougher ride and road noise of a more aggressive tread. On our 4WD Chevy Tracker we have AT tires (mudders are a little much for our every day ride), and like you we carry two sets of chains (real chains, not cables) year round. Chains can help you get out of mud as well as snow/ice. Plus a shovel. We would carry a Hi Lift jack too if we had the room.

I have actually talked to people who own 4WD SUV's and do not know how to put the vehicle into 4WD!!!