Used Colt gets my vote. It's the real deal.
According to Larry Vickers, the current Colts are the best ones they've ever built. He does know 1911s...
I would take a Colt, Springfield, or S&W E-series.
The SIG 1911s are extremely hit or miss.
Kimbers are great pistols...if you get one from the first series, known often by their place of manufacture, Clackamas, Oregon.
The later ones are built without any QC, so you make fluke in to a good one...but probably not.
What is the difference between the E Series and the Reg SW1911 ?