I've been a Kimber convert ever since the first time I shot the x-ring out with all 7 shots at 10yds with a bone-stock Kimber Custom II. The base entry model. Nothing custom. No special features. Not even a trigger job.
Wow. Can't really beat that for $600 NIB, imho.
It would take several hundreds of dollars to customize a Colt or a number of other 1911's to get it to be as fitted/tight, reliable, durable, and accurate as that Kimber is out of the box. And I get a factory warranty.
I now own that Kimber Custom II (stock), and Stainless TLE II, and a Team Match II. (Yes, they are habit forming).
I bought all three mostly to prove a point. I shoot equally well with all of them. And at my local range here in Los Angeles, we get all kinds of shooters (1st timers to bullseyes). Most non-gunnuts can't tell the difference between my Kimbers just by looking at the results on the target paper they just shot. And even the Colt-Or-Die cultists at my range have given me their blessings after handling, stripping, inspecting, and shooting my Kimbers...especially when they consider since that my Kimbers are all bone-stock expect for a light trigger polish on my TMII ($50) and a light feed-ramp buff to better feed semi-wadcutters.
The biggest difference, imo, is not the performance, but just the features: stainless vs. steel, ambidextrous safeties, target vs. night vs. regular sights, beveled mag well, slightly lighter trigger, etc. etc.
Yes, I've shot just about every 1911 on the market and so many customs that I've lost count, and while there are several excellent 1911's available today, I cannot overlook the price I get for the out-of-the-box reliability, durability, and performance of a Kimber: $600-$1000 vs. couple hundred (or thousand) dollars more for the comparable models from SA, Para, Colt, S&W, and Sig, let alone the semi-customs from Les Baer, Charles Daly, Dan Wesson, Wilson, Ed Brown, STI, Novak, et. al.
Well, I've rambled long enough. Talk to your local gun shops and gunsmiths and ask them about their experiences regarding reliability/durability (returned products, weak parts, etc.) and price-for-performance valuations based on their experience.
Buy what YOU shoot best. Good luck!