It rolls between 3 pre-agreement S&W revolvers...
I voted for 5-shot .38 snub, as my 042 is what I carry most often, in a pocket holster.
I also carry the 2.5" Model 19 or the 4" Model 19 in horizontal shoulder holsters.
VERY OCCASIONALLY I'll carry either the 4" Model 28 or the 4" Model 58 in a Bianchi vertical shoulder holster.