Like I said, I've been through these discussions before. Here's a good comparison chart for "one shot stop %" that is a bit revealing. http://www.chuckhawks.com/handgun_power_chart.htm
Have fun with it...
Lots of debate over those numbers. However, I'm a fan of them. I have long subscribed to Evan Marshall's research, from which those numbers are derived. IF you choose the right ammo, namely Cor Bon 115 +P+, then the 9mm is up there with the others. So many 9mm carriers, are fans of the 147gr pills. With those, the numbers of one shot stops drops down closer to 38 Special numbers. The top dog in that group is the .357 125 Remington offering. Followed closely by the .45ACP 230 HydraShok, then a the .40 cal pills. It is, of course, a matter of personal preference. My question to any 9mm carrier would be why, when there are .40 cal platforms that carry virtually the same number of shots in the same sized platform, would you carry a 9mm?