I have no personal experience with either gun. Kimbers only have a one year warranty. I believe? Which is total BS, if you ask me, for a gun that expensive. Not sure about Colt.
If it were me: if its a matter of brand, I'd choose the Colt. If its a matter of caliber, I'd choice the Kimber.
wish I were more helpful to you
Actually... One last thing... Are you crazy for considering these guns? No. More guns is better than less guns.