After a couple of years of research I have decided on a 9mm. A 9mm HydroShock will stop an individual as well as a 40 or 45 but without the kick and gaping wound cavity. I guess I should say that my objective is to incapacitate rather than kill. Its just easier on the karma. If I need to kill I have the option but incapacitate first.

Anyway here are the choices.

Glock 19

Springfield XD9

If you have pros and cons let me know.