A world of difference...
My P220 doesn't see as much action as it used to, but neither does my 1911. I have an itch to scratch at the moment with revolvers. When I start buying auto's again, I plan to trade my 1911 in towards a Springfield Loaded model, or a Smith & Wesson 1911. From what I've seen, you can't beat them for the money when it comes to 1911's. The only other auto's I could see buying in the near future are Sigs. I especially like some of the newer Sig pistols, like the Equinox and the SAS versions.
I own a cheap 1911, and a Sig P220A (also a Sig Pro). It's not fair to compare them, so I won't. The Sigs are in a class of their own. What I can tell you is that neither one of my Sigs has ever had any failure of any type, with more than their share of super-cheap ammo and 500-round range sessions. My 220 shoots the aluminum cased CCI crap ammo all day without a hitch. That same ammo has knocked my 1911 out of commission so severely that a mallet had to be used to remove the spent case from the gun. My P220 feeds, fires and extracts everything perfectly... every single time.
I am most accurate with my P220. More than I am with my 9mm, which I actually shoot very well. Shooting .45ACP in a P220 is very pleasant. I also like the sights on the P220 more than any other gun I own...
I lost count of the rounds I've put through my P220 at somewhere around 3k since Christmas. It shows no signs of slowing down. Even on the internet, accounts like Master Blaster's are very few and far between, but every gun manufacturer makes a lemon here and there. I'm sure he would agree to that. Other Sig owners I've met in person have never told me anything negative about their experiences with their Sig pistols.
I also like DA/SA for carry better than 'cocked-and-locked' Condition 1. I don't like safeties as much as I used to think I did. With a 1911, you carry it cocked, with the hammer back, and the thumb safety on. To fire, you switch the thumb safety off, and all shots are SA. 1911's have better triggers than Sigs on average, IMO.
With a Sig (or other pistol that uses a decocking device), the decocker lowers the hammer down safely. The first shot is a longer DA pull. All subsequent shots are SA. Some decockers with safeties, like the Ruger P-series models, I find a little confusing. I am a big fan of the decocking mechanism on Sigs. No safety to think about, just pull it and shoot. Very worth it to rent one at your local range and see what you think.