Oh yeah, about single vs. double action. That's why 1911s are awesome. The 1911 is properly carried cocked, with the manual safety engaged, "cocked & locked" as they say. In theory one always remembers to sweep the safety lever off as one draws the weapon. Then, because the hammer is already cocked, the trigger pull is short and light, and that helps with accuracy and speed. There's no combat handgun I know of with a better trigger than a 1911.
But what if you're too flustered to remember a manual safety? There's a few approaches to this problem: Double Action Only (DAO), where a rather hard and long trigger pull cocks the hammer for every shot; DA/SA, where a rather hard and long trigger pull cocks the hammer for the first shot and followup shots are shot light single-action, and Glock-style "safe action", where, as I understand it, the hammer (striker) is partially cocked when the weapon is in its ready condition and cocked the rest of the way by the fairly-light fairly-short trigger pull. But others will know much more than me about all the more 'modern' autoloader actions; I've never owned one.
I decided to go with a totally 'point & shoot' system, that is, a DAO revolver. I don't consider the (relatively) long, hard trigger pull a problem, now that I've practiced with it for a while.