My choice wasn't really listed. When its practical...I carry my CZ 75B (cocked-and-locked). Its the gun I use for IDPA, so its the gun that I know I can draw, thumb the safety, and deliver a double-tap without thinking about it. But...at 2 1/2 pounds fully loaded, it can be a chore to carry sometimes.
When the CZ's not practical, I have a NAA mini revolver in 22 mag that I slip in my front pocket.

I'm waiting for that new Ruger LCP to show up in my local gun shop. That will become my "always" carry gun.