The answer to this question is kinda like picking a draught in your local craft brewery. They're all excellent in their own way, and yet they all offer something different. It's very difficult for me to compare a SA/DA semi-auto with a high capacity magazine to a 5' barreled 1911 style pistol. In some ways, the Sig wins, in other ways, the 1911 wins (I'd also take a Sig in this category, but that's a different discussion). With the accessory rail, the 1911 in .45 ACP is a perfect home defense weapon. The Sig, on the other hand, is fun to shoot, and a little easier to carry around with you. Pick the one that makes you happy right now, and buy the other one next. (Unless, of course, that perfect Model 10-5 comes along before . . . )