I'm a little surprised one of the best concealed carry guns ever invented has only been mentioned twice so far.
HK P7 and/or P7M8 - supremely safe design without the use of a conventional safety, easy to shoot, super accurate, amazing reliability, Very thin, very low bore axis, over engineered and a modern masterpiece, especially for CC. The only shortcomings I can think of are availability, cost and weight. They can also get hot if you shoot them a lot, but that's not a concern if you're CC'ing.
If you haven't had the chance to shoot one of these or own one, see if you can track one down. Like pythons, production was stopped in no small part because of the cost. They are simply superb. They are becoming harder and harder to find and the price is only going up. I thought about buying a couple when there were quite a few german police trade-ins coming over, but stupidly, I did not.
That said, here are my choices for CC. Size and weight are a big deal to me.
1. S&W Shield
2. XDS 9mm
3. Glock 26/27
4. Glock 19/23
5. Walther PPS
6. HK P7M8
7. Kahr PM9
8. Glock 30s
9. Ruger LCP
10. Commander 1911 - something semi-custom. Kobra Carry etc.
