So far I love both of my Colts, a 3 inch New Agent and a 4.25 inch TALO edition CCO.
The CCO is easier to shoot and the New Agent is easier to carry, I could write more about them but it basically boils down to that. The "sights" (or lack thereof) on the New Agent take some getting used to, but the setup works well for up close shooting (less than 10 yards). Not that you can't shoot out farther with it, but being precise is a bit harder.
For a 1911 not totally dedicated to carry, I'd definitely focus my search on Commander or CCO style 1911s. I love my Colts, but I'd be happy with a Sig, Springer, S&W, Dan Wesson, etc. They're all good, it just boils down to personal taste and options at that point IMHO.
There's also my 3 inch Springfield EMP, but they only come in 9mm/.40S&W so it won't work if you want a .45.