If you're a Glock guy, the 1911 world is going to be quite a big change for you.
Throw me in for another voice in the choir for a Colt 1911. Specially, find yourself a Colt Competition Model in .45 ACP. It's a 5" Government sized pistol, with Novak slide cuts and an adjustable rear sight. Get the .45 as it's much easier to find ammunition and magazines. I actually don't know how many rounds I've put through mine to date, but it's more reliable than any Glock I've had except perhaps my first Gen 3 Glock 17. Seriously, keep it clean, keep it lubricated, and it will work.
For the ultimate best results with respect to reliability, I'd suggest feeding your 5" .45 ACP Colt 1911 from 7 round magazines. I've had intermittent failures to lock the slide with some 8 round magazines, but not a hint of trouble with any of the 7 round magazines I have on hand (Colt, Wilson 47, MecGar). On the ammunition front, factory 230gr FMJ is generally the best feeding, though I reload 230gr lead round-nose bullets with 100% reliability. I also like to reload 200gr semi-wadcutters for low-recoil steel-plate shooting, though those may require a little fussing to get to 100% reliability. One of the fun things I've found with my .45 is that it WILL feed ammo loaded with SWC bullets perfectly fine, and cycle with fairly light loads. For hollowpoint ammo, the only one I've tried so far is 230gr Remington Golden Sabers, and they feed as well as hardball in my gun. But don't take it as a given that any mentioned JHP load will feed in your particular 1911/magazine combination.
Back to the 8-round magazines; many of them work just fine, and many 1911 shooters have preferred brands and models. It's nice to get the extra round in if you can. Just be sure to test the magazines to make sure they do in fact work. I haven't had a failure-to-feed from any of the 8-round magazines I've tried, but I have deadlined a couple that simply refuse to lock the slide open when empty.
OK, I've gone on long enough. I'll leave you with a picture of my blued Competition Model in it's natural habitat. Home on a range somewhere eating up buckets of ammo.
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PS: The stainless pistol in my avatar is a Colt Competition in .38 Super. A lot of fun and a great head-turner at the range with warm loads.