I rotate my carry depending on what I'm wearing, how I feel, or what my wife takes with her. Most days (especially during the summer) I carry my S&W 442, just because it's so easy to carry. Some days I'll go with my S&W Shield 9mm and when I'm looking for more capacity, I'll carry my trusty Glock 19.
Not related to this thread, but I also recently finished an AR build. For any gun enthusiasts looking for a long-gun and are willing to be patient, I'd recommend doing an AR build. It took me about a year to complete, but I saved money and was left with a gun that I truly feel is "mine." I MIGHT sell my Shield down the road to help finance a long-range build, but that's easier said than done.
And a better view of the AR: