It depends when and where. Daily as I go to and from work I like to carry a smaller and lighter gun that is easy to get in and out of the belt, and for that I use mostly a SA EMP 9mm. If I am going out at night, weekend,... I carry a commander 1911.
But if I am working outside, or if it is raining, and I know I will get wet I will carry a Glock26 or Glock29!