Have both. Love the Colt, the history, the feel, the look. But it is not reliable enough for CC work in my opinion. It won't feed Gold Dots for love nor Money. I know what is wrong with it, loose firing pin stop and clocking extractor. I could get it working, but I would have to keep at it to keep it reliable. Google a gunsmith by the name of Hilton Yam. The XDS just works. 900 troble free rounds, Gold Dots, Cor-Bon flying ashtrays, eats them all.
The Colt is a Ferrari, a high maintenance thourobred that is sexy as hell. XDS is a Corvette. Not quite as exciting to some but always works and still kicks ***. Keep in mind this advice is based on my experience only. You may disagree, fair enough. But in general the 3 inch 1911's are considered to be tempermental mistresses. The 4 inch Commander models are more reliable. New Agent feeds Hardball fine all day long, but hollowpoints are iffy.