Glock 17 Gen 4 and/or Taurus PT709 depending on what I'm doing that day. My buddy gives me $#!t because they aren't 45's. I say, if they're so ineffective, stand 25yds away and let me shoot at you. That usually shuts him up!
I carry a smith & wesson model 317, very light weight and comfortable to carry for me. I know lacking in power but rather have it on me than nothing at all. Wife likes it too.
I mainly carry a Sig Sauer but bought a SW9ve from a friend at work for a price I could not pass up. Getting a trigger job done to make it a little lighter and going to try it as my carry handgun.