No Glock double stacks. Period. Too damn thick for concealed carry, except in the winter time, and if I'm going to carry something too thick and heavy to conceal IWB, I have other (better) choices. Once again, my opinion.
I know a lot of people go on and on about G-19, G-26, etc. I have owned several, and while they are great range or HD guns, they are not CCW guns...for me.
What does that leave you with?
Bottom end--the PF9. I don't like the trigger or trust the quality. I've owned four Kel-Tecs so far and am batting 0-for-4. There will not be a fifth.
The Kahr PM9 is my favorite, but I had to send mine in. Once. Since then, it's been the best CCW gun I've ever owned. Light, accurate and absolutely reliable. Bought mine used for $500, and will probably buy another one day.
The EMP is a jewel, but weighs more than it should, and my first one was so bad that Springfield worked on it for a month, then gave up and replaced it. The replacement is not 100% yet either.
Good luck, and let us know how it ends up.