I will go with the 1911 - right out of the box it will shoot the way it is supposed to, reliably, when shot with mil-spec or ball ammo. Anyone who thinks they need a hp or soft nose for a 45 round has either never used one in combat, has listened to idiots who have never used one in combat or do not know what the hell they are doing with a handgun. If you think you need more than the 7-8 rounds you will get from a 1911 in 45 acp then carry a extra magazine. I have never, not ever seen anyone get up from either 2 rounds from a 45, most often one is sufficient, or 3 rounds from a 9mm, all ball ammo. For that matter, I have not seen anyone get up after two rounds to the chest from a snub-nose 38 with plain jane swc ammo or 2 rounds from a 380 with ball ammo.
If you don't think ball ammo will take down a aggressive opponent then you need to practice bullet placement, and Gawd help ya if your hp slugs or soft nosed slugs fail to perform as expected. What is this with you people? You talk about having to shoot someone but you fail to undesatand the basics of combat pistol shooting. You need to practice more, period.