I always thought the Police Positive was a nearly ideal size for a 4" .38 revolver. I have one but it seems Colt forgot to regulate the sights, it hits so far to the right and low it might as well not have sights. If I could find another 4" PP that shoots to POA I would use it as a CC piece.
Other than that, Colts don't shoot any better than S&W for me to notice. I am too set in my ways as a S&W guy to ever become a "Colt guy", although I wouldn't turn down another nice Police Positive or an Official Police.
All the stories of Colts going out of time after 10,000 rounds kinda scare me off too.......so whenever I think of picking up a Colt, I just buy another S&W