Joe Chambers at Chambers Customs has recently started doing "mathematical reviews" of single stack and double stack 1911s on his Patreon channel "1911 University." In his reviews, he compares a several measurements and tolerances to what he uses on his builds. For instance slide to frame fit, bushing fit, vertical impact surface, barrel leg fit, extractor, etc.
I'll be keeping an eye on these for a while before I dive into the 1911 world. He's done a couple reviews of $3k+ custom shop guns with an unimpressive fit and drop-in or barely massaged parts that you'd expect in a $1k to $1500 semi custom. He's quick to point out that these are reviews of single guns, so it's anecdotal and not indicative of the company or line as a whole.
A couple examples that he put on his public YT page:
One of his own guns that came back after 30k rounds.
If you want another deep dive, I suggest the P&S Two World Wars episode. (It's also available in podcast form. I don't think you loose much by not watching it)
I definitely recall they like the Ruger in the $1000 price point and Dan Wesson in the sub $2000. I'm seem to recall Nighthawk was preferred in the $3000 point and, of course, Chambers at the $4k+ range.