I'm with Spats McGee -- love the 1911s but it would be hard to pick a particular one. The one I carry the most is the Dan Wesson CCO because it is heck of a gun and built for carry -- night sights, aluminum alloy frame, shortened grip frame, rounded butt, and 4.25 inch barrel.
Jim's Rules of Carry: 1. Any gun is better than no gun. 2. A gun that is reliable is better than a gun that is not. 3. A hole in the right place is better than a hole in the wrong place. 4. A bigger hole is a better hole.