I guess I carry my old Model 60 in 38 special most of the time. It just feels right to me. I inherited it from my stepfather. He was a retired LEO. He retired around 1986. He was shift commander and wore civies most of the time and this 60 was his off duty and duty gun for many years, so it has some sentimental value for me as well as it just being a solid and reliable defensive handgun. I don't know what year it was born, I'm guessing around early 1970s.
I also carry a Glock 26 on days I feel particularly randy.
If I happen to be dressed light or really don't want anyone to know I'm carrying, I'll have my LCP in my pocket.