In my old age my beloved EDC is a 640 no-dash .38 Special. Bought it used in exceptionally nice condition and have carried it daily for over ten years. I have Pachmayr Compac grips on it due to severely arthritic hands, and can shoot +p 158 grain LSWCHP quite comfortably.

I think the J-frame is just about the ideal combination of compact concealability, power, reliability, and simplicity of use and maintenance.