The 1911 and P220 are both metal pistols that handle the .45 well. I own both, but much prefer the P220. The 1911's shoot very accurately, but the magazine well is very thin. The 1911 is also much harder to field strip. With the 1911 you have to spend over $1,000 to get a reliable (for defensive purposes) pistol. The Sig is just as accurate and has better ergonomics. For the P220, switch out the factory grips for Hogue G-10's and you are set.