My background is a police officer, SWAT dude, firearms instructor and armorer.
I was an officer back in the day when we were issued .357s, most carried the S&W model 66, many bought the 686 or Colt Python.
We had many more break-downs, jams, stoppages, etc. with our revolvers than we have ever had with our since issued 9mms (we had the S&W 5906 series for almost 20 years, now Glocks).
The Glock 17 or 19 would be the top choice for a one and only SHTF weapon.
They are, in my experience, one of if not the most durable and reliable pistols ever built.
They are easy to clean, easy to work on when needed (which is seldom) and withstand abuse that would wreck a revolver.
For someone who will only own one gun, I'd VERY strongly advise getting a G17 or G19 (depending on what they can conceal), ammo, some extra magazines, and an Advantage Arms .22 kit for cheap practice.
This is the kind or advice you should take into account.
Even if you never owned or touched a Glock in your live, if you do your research well you’ll know what works and what doesn’t, what performs in the most extreme conditions and which tools fail more often.
“But FerFAL, I’ll never throw my Glock out of a plane and its very unlikely that it will get run over by a truck”
Of course, but these tests and these accounts by people like Chuck that have seem how hundreds of guns performed during extended periods of time gives you an idea of the capabilities of each weapon.
What if you accidentally drop you firearm in the mud, even on the side of the street where there’s that mud mixed with small pebbles? Its not crazy, that’s the environment we move around most often.
What if you drop to the floor or take cover behind a low wall? That’s not the time to worry about grit and dirt getting into your gun.
What about good old reliability and failure to feed or eject?
If a Glock and an H&K USP, both go into a bucket with mud and the USP stops working after that as seen on the Glock torture test, my friend, do whatever you like but I’ll choose the Glock.
I remember what an instructor told to a friend of mine, a die hard 1911 fan that shall remain anonymous.
He told the instructor that the 1911 simply felt better in his hand. The instructor told him “ well then just get used to gripping the Glock”.
Its THAT much of a better weapon, enough for you to make an extra effort and get used to handling it even if you don’t feel comfortable with it at first.