Well, despite the love that many people have for their 1911s, it's just not one of the pistols that can, out of the box, attain the ultra-reliability ratings of modern pistols. Neither it nor the Hi-Power can compete with the newer designs that really began with the Beretta 92. Neither did very well in the military trials.
But the 92 had its own problems, as we saw. The second generation up of S&W pistols seemed to be the first of the ultra-reliables. Then came the Sigs and the Glocks. I used to think that the steeper the ramps, the more unreliable the guns, but the S&W 645 sure cured me of that notion. Still, I think the Beretta's lack of an ejection port and its straight feeding from the magazine into the chamber certainly adds to its reliability. As guns made the ejection ports larger and reduced the angle of the feeding ramps, jams became fewer and fewer. Still, it bothered me to see Kimber 1911s malfunctioning so many times on firing lines everywhere.
We know a great deal about what makes the 1911 malfunction and decent gunsmiths know how to take an out of the box 1911 and make it extremely reliable. Manufacturers, however, were able to design the problems out of them without costly after market fixes.
With good .22LR ammo, I think the Ruger Mark II/III pistols are frightfully reliable. I see very few jams with these guns, but I do hear repeated BANG, BANG, BANG, BANG, BANG, BANG, BANG, BANG, BANG, BANG, BANG, BANG coming from various stalls where the Rugers are being used, and most of the failures are the ammunition, not the gun failing to feed or eject.
I don't believe I've EVER seen a Beretta 92 jam, and I've owned a number. I've had a couple of 659s fail to feed with badly reloaded ammo, but never with factory or decently manufactured rounds. The difference is that the Beretta seems to feed anything you can get in the magazine.
The unfailing Beretta functioning also is there with my little 950 and my 21, but the latter isn't a cheap date. It has a fussy pallet. It won't eat just any .22LR. If you use fresh hi-vel CCI Mini-Mags or Yellow Jackets, they just keep spitting lead out like there's no tomorrow. I also wouldn't push it too far by shooting too many rounds. My little Jennings J-22 is flawless as long as it's clean. Getting back to Beretta, though, their Tomcat autos almost always fracture and crap out. No one should rely on them because they can fail at any moment and then they begin jamming once a hairline fracture develops. That can be bad if it happens while you're shooting.
Glocks are certainly a modern marvel, though limp-wristing them can make them jam. I will not carry the damn things with a round up the snoot and don't like carrying them without cocking them.
Having said all this, the Browning Hi-Power is fully reliable enough to bet one's life on; still, it's not quite in the league of the more modern designs, as I see it. It's a fair weather pistol and functions just fine when it's cared for. When it's subjected to grit, dirt, dust, and neglect, it just doesn't hold up to it as well as some of the other, more modern, pistolas.
In the end, it's hard to say what is best. If I had to absolutely put my life on the line, there are many to choose from, but in a new pistol, I'd have to go with the Beretta. I do have questions about the long term reliability of them. Some say that civilian pistols will never develop those problems, nor will the Italian versions of the pistol. I just don't know if they can last for as long as some of the others.