I used to carry a Colt Government model, but found it a tad heavy for all-day carry, and a little bit slow out of the leather.
I have since purchased a Series 70 Combat Commander (all steel) and had it customized.
GREAT GUN. It carries easily, clears leather faster, is just as accurate (or more so, with the modifications) than the Govt. model. I shoot 185-gr. Golden Sabers and don't notice the recoil at all. I used this gun two weeks ago during a two-day shooting class. First out of the leather, double taps to center mass, first back in the leather.
I'd get the Commander.....