A 1911 is my choice to reliably protect my life with, never a 9mm! there is a reason the 1911 was intended for 7 rounds, not 18, it does not need them. There is a reason the 9mm usually carries 18, it needs them.
One thing I learned decades ago, if you ever need a gun to protect your life, you have one shot to do it! in rare occasions you may get 2 shots before your attacker shoots you, after that the rest are just for pounding your chest! But if you don't have control of a situation after the second shot, you don't have to worry about being the defendant, your most likely going to be the victim! I'll stick with what gives me the best chance at only needing one shot to make my statement, anything else is to play with!
Respectfully, I'm going to disagree with almost all of this.
1911's are also made in 9mm and other rounds. Single stack and hi-caps. So in single stack mode, 10 round mags, plus 1, at least in one of my Commanders. So 11 rounds instead of your 8, if you insist upon a 7 round mag, as it was 'designed'. Lots of 'design' changes to the gun in your post that you seem to be OK with, so I'm not sure where you draw the line.
I would welcome reviewing your forensic data on the 'one shot is all you get'.
I will always have 45's in my safe, but there is nothing special or magical about them or any other round. You still need to know how to shoot. And if you think a well constructed, well placed 9mm, 147 gr bullet,
@1125 fps is for 'play', then you need to think again. Emotions should play no part in bullet selection. "That's the way JMB designed it, by God" just doesn't cut it any more. It's rare to see a 1911 now that duplicates the original 'design.'
To the OP: A 9mm hi-cap Prodigy/Staccato with a dot, loaded with appropriate bullets, makes a superb carry gun. And I believe it's still cheaper to buy 9mm ammo then load it, depending upon what you want. For plinking/practice/etc., FMJ is still probably cheaper to buy than load. A 3# trigger in a 1911 is not difficult to obtain.
Out.