None of the above listed, they're all Kimbers, they have a horrible attitude in the customer service dept., I will never buy one of their items. Colt, S&W or Sig for good value and return on money if needed.
That's interesting, as my experience has been exactly opposite.
I have an early Kimber Eclipse Pro II that I purchased used. Years ago, Kimber experimented with external extractors and mine was one of those guns. The gun was a jam-o-matic, so I called Kimber and they sent me a new extractor (free of charge), which unfortunately didn't solve the problem. After another call to Kimber, I sent the gun to them. In less than two weeks, I got a call from a Kimber employee who explained that he had just replaced my slide with an internal extractor version, had just got done test firing about 80 rounds through the gun with various types of ammo, with no problems, and the gun would be delivered to my house in the next couple of days - all at no cost to me (even though I wasn't the original owner). I still have the gun and it still performs flawlessly. It is my favorite 1911 (and I own many).
In contrast, I purchased a Colt Gold Cup Trophy, new, that had some serious cosmetic flaws. I didn't check it out as well as I should have in the store (because it was new) and didn't notice the flaws until I got the gun home. Basically, the slide had several dings in it. I sent the gun back to Colt and didn't see it again for 2 months. They had replaced the slide. Unfortunately, they drifted the sights out of the old slide and into the new slide with the care and precision of a monkey with a sledge hammer. Both the front and rear sight were literally peened/dented. There was also a large burr rolled up in the front dovetail, where the sight had sheered the metal from the slide. After another trip back to colt, the sights were replaced, in a professional manner, but the slide now had some superficial scratches, when the gun was returned to me. There was also a slight idiot scratch on the frame (from the slide release). Disheartened by my Colt experience, I decided not to send it back a third time.
I have bought more 1911's since then - a few of them Kimber's, none of them Colt's.