Personally I switch between a glock 36 .45, Jericho 941 compact 9mm, and Kimber Stainless II (full size) .45. Really depends on what I am wearing and what I feel like that day. I love the glock because its relatively small, light, reliable, and 6+1 of 45. Great carry option for when its hot out side and not wearing any layered clothing. The Kimber is by far my personal favorite pistol. Obviously its more accurate than the G36, but I just really like the weight and feel of a full size steel frame pistol. The only reason I don't carry it more often is because I have to dress around it in order to properly conceal it seeing as I'm not that big of a guy (5'10" 175). A little warning though, the whole crimson carry line are all aluminum frames. I did have an issue with a Pro Carry II were some hallow point rounds would excessively wear out the aluminum frames feed ramp causing feeding issues.
Just my 2 cents