If money was no issue and I could get any 1911, I would probably go for a Springfield Professional. in .45 acp. Has literally everything in a 1911 I would want and nothing I don't want(like front side serrations). It also has pretty close to an unsurpassed reputation for accuracy and reliability.
A close second would be an Ed Brown in .45 acp, probably their executive model since I prefer the front checkering. Like the professional, it has everything I would want and nothing I don't and is pretty close to the top when it comes to semi custom 1911's.