I did not have to shoot but if I did I want .357 Sig hollow points whether it hits glass, steel, or cholo. Ditto if I get carjacked and have to shoot out of my car.
When you're talking the same bullet weight, is a 9mm +P really going to be that lacking in comparison? Especially for penetration?
Know the status of your weapon
Keep your muzzle oriented so that no one will be hurt if the firearm discharges
Keep your finger off the trigger until you have an adequate sight picture
Maintain situational awareness