I was a serious IPSC shooter in the 60's and 70's. The Colt's were not sufficiently accurate without a complete rebuild. I had several. I was fortunate in having a retired Marine Advanced Marksmanship Gunsmith that lived near me. He did a complete accuracy job on my Colt's, then they were good units.
However, out of the box the modern Kimber is all over the Colt's. I wouldn't take five seconds to take a Kimber over the Colt any day of the week.
FWIW
Dale53