I will only say that there is PROBABLY a pretty good reason why most military and law enforcement carry 9x19 side arms. FWIW, one stop shots have a lot more to do with shot placement than caliber, big toe exemption noted. 
Little fun, and tongue in cheek here. Shooting REAL bullets taped to a BB gun - YouTube
If the 45 Long Colt can’t penetrate a 2L bottle (5:23) then likely the slightly lower energy 45 ACP won’t either. The 9mm did though (2:20). LOL
In all seriousness though, I love my 1911 .45 but for my EDC I would select a full size 9mm over a .45 every time. While we may debate over the benefits of a bigger, heavier bullet, I believe the opposite to be the case, but that’s me. I’ll take less recoil over more, I’ll take higher follow-up shot accuracy over less, I’ll take more ammo capacity over less, I’ll take higher velocity, flatter shooting round over slow, heavy, faster dropping round. These are but a few benefits I’ll select in the 9mm every time for an EDC weapon. Now if fun at the range is the goal…I’ll take my full size 1911.45 every time. Just my $0.02!
And for my final answer, I share the following:
For the same reason I do not currently own a full-size pickup truck. I can’t fit one in my garage.
I’m a big fan of pocket carry. It’s nearly impossible to accidentally expose or lose the gun. I also believe that if you are the attempted victim of an attempted robbery, if you reach into your front trouser pocket (supposedly for your “wallet”) the perp is at least slightly psychologically disarmed. “He’s doing as I told him.” He mistakenly thinks. This I believe gives you a whisker of an edge. Reaching into small of back, waistband, etc. might just key him up more. Just a theory. That said, with me it’s usually 5 shot snubby wheelgun front right trouser pocket. Five times the firepower of Barney Fife!
I personally always recommend to my students that they carry the largest gun that they are comfortable with that they can effectively conceal. Larger guns are often easier to manipulate if you have any sort of malfunction or stoppage - especially with the loss of fine motor skills in a high stress situation.
With that said, everybody’s body type is different. Their clothing choice is different. Their work or other daily activities are different.
I, myself, alternate between a couple of XD-S models and a Kahr CT380. Neither of which is even close to a full size…
I don’t believe a rational person would use that video for the reason to carry a particular round. I can fire my .45 almost as quickly as my 9 with shots on target. I can fire my 9 as fast as my .22LR with shots on target. My 9 holds 13+1, my .45, 10+1. If I can’t do the job with 11, I don’t think 14 would be any better. If I needed 11 rounds, the issue of shot placement is most likely the issue, and another three likely being of use is suspect. As to .45 cal. bullets dropping faster, in a typical self-defense situation, that would not be a factor. You typically will not be using a handgun for self-defense at 50 yards, and not likely even at 25 yards, but at 25 yards, due to dispersion of shots at that distance, the drop will not change the center-mass shot placement enough to matter.
Some of us carry a 9mm because we are comfortable with the form factor, weight, and recoil. Others carry because of the extra rounds available in a single magazine. I don’t think anyone ever thought, after a gunfight, “I wish I hadn’t carried so many rounds.” If I can’t do the job with 11, I sure as heck hope numbers 12-14 get the job done.
Which leads back to the shot placement issue, which I was responding to. When we read about police emptying mags of 17 or more and hitting with maybe 1 or 2, it’s the same issue, shot placement. Odds are not likely it was their 16th and/or 17th rounds that hit, but just one from that mag. Most self-defense shootings do not even use more than 3. As private citizens we cannot just let the lead fly, or whatever composition your bullet is.
Of course not. Like I said…it was just for fun.
Stop that rhyming, I mean it.
I could care less about printing, p… off the liberals.
Printing is not illegal, so screw them.
Yes. I don’t know about you, but I am pretty sure I’m not going to be as accurate under extreme duress as I am on a nice day at the range.
In some jurisdictions, that’s not correct. You can be cited for printing; technically, it can be considered “brandishing.”
That is likely true, but at typical self-defense distance, I don’t believe I would be wildly off target - and hope to never have to find out. I practice point shooting at typical SD ranges, and that is quite accurate, so I don’t have the issue of finding the sight, you develop a natural aim based on what you see and what you are shooting at.
Yes. Absolutely.
Nowhere in the United States does a statute exist that makes it illegal for one’s concealed handgun to imprint its shape on the carrier’s clothing.
Actually, such statutes do exist… Brandishing and Improper Exhibition of a Firearm - USA Carry. See the word “careless” in the second set of bullet points.
While Florida’s statute has been changed to exclude brief and accidental display of a weapon, I’m not sure
…counts as “accidental.”
Also, other states are not so liberal with their definitions of brandishing.
5. Know the Law
In states where open carry is prohibited, it’s often rumored that any degree of printing is illegal too, even with a concealed carry permit. In reality, this is almost never the case. Since printing is not a technical legal definition, it raises the important question of what exactly qualifies as “concealed”. Laws vary from state to state, but in most places, as long as you’re making a legitimate effort to keep the gun concealed from the average untrained eye, you shouldn’t have to worry about printing. There’s a lot of overblown misinformation out there on this issue, so be sure to get your facts about state and local carry laws from a reliable source before making any assumptions.
In the minds of some, printing becomes confused with brandishing, and these two acts are entirely different. Brandishing refers to the act of intentionally displaying the weapon to elicit a response from someone. Granted, there have been incidents where people have incorrectly inferred that an armed citizen was acting threatening towards them simply because they saw a weapon, but brandishing is usually not a conclusion that can be drawn from merely the sight of a printing handgun.
Printing, however, does not constitute brandishing a weapon, but obvious printing can arguably open you up to attention that you may not want.
Personal Comment: I am unaware of any state where the inadvertent visual detection of your legally concealed hand gun means you…the carrier…has broken a law. However, I do know that this used to be true in the early days of concealed carry in Texas. Oddly enough, it was actually a felony for someone with a permit to reveal the firearm (without regard to intent), but someone without a permit who was caught by a law dawg with a concealed firearm was only guilty of a Class C Misdemeanor (non-jail offense…like a parking ticket). You paid a small fine and they gave you back your gun. Needless to say, I did not apply for a permit until after that stupidity got resolved in the legislature. It was just a legislative error. But the TX legislature only convenes every other year. It took 4 years to get this corrected.
This is what I like in IL Gun Laws:
"“Concealed firearm” means a loaded or unloaded handgun carried on or about a person completely or mostly
concealed from view of the public or on or about a person within a vehicle. "
I’ve never had any problem with printing, even I’m printing. There is no way my firearm will be invisible 24/7/365 
Yes. Overblown information exists on both ends of the spectrum. Just as printing may not be seen as brandishing (depending on a specific jurisdiction), adopting an “I don’t care” attitude about any aspect of concealed carry just isn’t as safe, or as wise as taking a more discreet approach.
Statistically speaking some +P 9mm are 86% stoppers, while 45 is a 87% stopper, the debate goes on. I prefer the .50 AE or 500 S&W on for most dinosaurs like Raptors, For the T Rex I think .45 would be a bit light, as well as the two aforementioned calibers.
To each their own in choice of calibers.