I had a SIG 1911, SN 11xxx, I had to send it back, twice, but the best--THE best--out of the box trigger of any sub-$2k 1911 I've had.
But my favorite? A $550 Springfield Armory Mil-Spec.
I had one of the original GSRs with the Caspian frames and Storm Lake barrels. 100% premium parts put together by people who were used to assembling P series Sigs. It had issues but when it shot it was a tack driver and had a great trigger. I got too frustrated with it after the extractor retaining pin walked out and I had to send it in to get it replace. It was my last external extractor 1911.