I'll bite, although, admittedly, I'm not really a 1911 fanboy, I do appreciate a good firearm that served our nation well and continues to be a cornerstone of the pistol market. I also think that you can't call yourself a gun person without owning one.
2010 I bought a Springfield 1911 GI Champion. Great gun. Probably put 2,500 rounds through it and the only issue was a few FTE because I didn't realize one of my mags got wet once and the spring needed to be meticulously cleaned, then it never had a problem again.
My brother has owned a Wilson CQC- fun to shoot, great gun, but for the price it's not much better than a full size Springfield, IMO. Then he got rid of it for a Nighthawk Custom GRP. Fan-fucking-tastic firearm. I love to shoot it and would be hard pressed between a Lippard or a Nighthawk if I had the $3,500 to just willy nilly spend on a custom 1911 (although the Lippard would win out in the end).

Here's the bro's GRP- I love the FDE frame and black slide, looks very cool.
That being said, some of the really expensive guns you can pretty much get the same out of a quality Springfield or Colt.
However, again IMO, the hands down, end all, be all, best 1911 money can buy would be a Lippard custom like the CQBP 1911 (biased because I've met and chatted with the man and view him as equal to Mr. Colt himself or Mr. Browning)