In my testing, I found the 1911 to be as reliable as a Glock 17. Specifically, I present as fact of that matter, that I conducted a "3,000-round, no clean, torture-test" of a Colt Series 70 reissue and of a Glock 17. Over the course of a month, I fired 3,000 rounds through each pistol. I only added oil every 100 to 150 rounds, and never did any cleaning.
Neither pistol ever failed in any way, shape or form. My intent was not 3,000 rounds; my intent was to see when one would become so dirty that it would fail. Finally, at 3,000 rounds, they were filthy, that I merely could not stand to see my beautiful pistols so filthy. Not only did neither pistol have any form of failure, the accuracy was tip-top the whole duration.
That test does not compare to the military's old test of 6,000 rounds, but how many of us would normally have to go 3,000 rounds w/o cleaning? That's pretty good. By the way, that STS Colt Series 70 reissue cost me $749.00, and today can be bought for $850.00.
Edit to add: The STS Colt Series 70 reissue that I own is as loose as a baby rattle. It is seriously loose, and I love that fact! But, then it goes into battery, the barrel/bushing/slide is like a monolith of steel! The slide to receiver fit rattles, but wow is this li'l stallion runs!
You started an excellent thread Gunsmoker, thank-you! Thanks to all for keeping it professional and up-and-up.