Taking in everything into account, and I think a 1911's total history, I think the record of the Colt Commander is it. As a Texan, I can tell you for concealability, realiability and accuracy, this model was a favorite of the Texas Rangers for decades. It still is today in some Ranger Units. If I had only one handgun on a deserted island left to fight, when western civilization melts down, I want a Colt Commander 1911. Lightweight or all stainless are both good. I personally like the all stainless. You can buy more expensive guns, but look at what Americans have counted on for 97 years-a trusty Colt.
