I've never "carried" a 1911, but back in the 80's I shot with a local IPSC club. I never thought about the safety. It was alway on, and "snicking" if off was just part of bringing the gun on target. As soon as I was finished shooting, it went back on. Never saw a problem with it. If I was to ever carry a 1911, it would be cocked and locked.
My carry guns now are a Makarov, and a Smith and Wesson 39-2. Both are conventional DA/SA semi's. The "safety/decocker" works differently on both. On the Makarov you sweep it down to disengage. On the S&W you have to push the "safety" up, which forces you to shift your hand on the grip. The Makarov's downward motion is more "natural" at least to me.
It really doesn't matter, because I carry them both with safety in the "off" position, but if I had to, I prefer the downward movement of the Mak.