I don't have much experience with CZ, but if I were choosing between the Beretta M9 and Glock 19 for a do everything gun, I would choose the Glock with no hesitation. I also own both and love both.
I also prefer single action striker fired guns for general practical use. Cary with a loaded chamber and your holster supplies the safety.
A CZ with DA/SA and a cocked and locked option is a nice idea to me though.
I'd still probably go for the Glock. They are all great guns though. And like Uncle Malice said, there is always HK