Jeez!
Lots of unreliable opinions in this thread --except MY opinions of course.
Don't confuse Auto Ord. with Para Ord. (Write this down or store it on your C://drive.) Auto Ord is cheap crap. Para Ord is a very fine gun, and the company is one of the original mfgs of the 1911.
You want a "Mil Spec" that is faithful to the original military issue 1911a1. That would be the Springfield MilSpec.
We can eliminate the other options mentioned in here:
The Colt Series 80 features a non MilSpec safety linkage.
The Colt 1991 is NOT a 1911 even though it looks like one. IF it were a 1911 it would be designated 1911. It's not. What's that tell you?
Kimber is a production gun trying to be a "custom" gun at a production gun price. You can't manufacture a "custom" gun at a production price. Its "custom" features take it out of the Mil Spec class. Kimber contracts out a lot of its parts. Its had problems with the fit/tolerances of the jobbed-out parts. The mag release now needs to be depressed to insert the mag. Before that the slide would not stay open after the last round. Military Specs require that the slide stay open after the last shot, and that the mag be inserted without depressing the mag release. Kimber uses cast parts. The castings are very sophisticated, but they're cast. Mil Specs require forged parts. LesBaer will customize your existing 1911 and provides a list of the brands of guns they will work on. The Springfield is on the list. Kimber is not on the list. What's that tell you?
Springfield is an American product. The Brazilian factory is owned by the Springfield Armory in the USA. It's state of the art. ALL the guns are fitted and finished in the USA arsenal They have a lifetime warranty and excellent customer service.
A "clone" of the 1911 is ANY 1911 production gun. The 1911a1 patent is expired, and the specs are readily available to anyone who wants to produce an exact, Mil Spec, 1911 -- Even Norinco in Communist China. Mfgs like Norinco and Auto Ord cut corners on metal alloys, fit, tolerances, finish. They meet military specifications, but they're NOT the quality of a gun that EXCEEDS military specifications in fit/finish.
You could shop around and pay a premium price for a true Colt military production gun -- or a Remington Rand, Union Switch & Signal, or any other of the comparatively rare, collectable "antiques." Then you'd have a collector and not a shooter. Also, the military guns are not nearly as tightly fitted as the production "clones." The GI guns are loose to make them function reliably in combat conditions. Loose makes them reliable, but not very accurate.
The Springfield Mil Spec is PRECISELY manufactured according to military specifications: forged parts, military spec slide/sear linkage specs (unlike the Colt Series 80), parkerized, tight, accurate, nice trigger out of the box.
I wanted a Colt 1911 and price was no object. My dealer -- who is both knowledgable and a bit of a high end snob -- talked me out of the Colt and into the Spingfield. I'm glad that he did. The Springfield is a nicer gun these days, tighter, more accurate.
$15.00 is not "money" when purchasing a firearm. $15.00 is the price of a box of ammo. Even $50 or $75 is not much of a price difference in a $500 firearm. Easy to put $50 or $75 into a holster for a $500 firearm.
OK, probably more than $0.02 here . . .