Doing the draw from concealment, and putting the first shot in the vital zone at ten yards, in under two seconds drill, my first shot accuracy is better with a revolver. With either one, I tend to shoot low, or my bad-shots will be low. (groin shots!)(OUCH!) With an automatic, my follow up shots tend to be more accurate, as then I'm shooting single action, whereas I'm still shooting double action with the revolver. None of my automatics are DAO, or striker-fired Glock type pistols. The 1911, CZ52, Beretta 92, Tokarev, etc. are my old-school autos of choice.
For some reason I don't do as well with smaller automatics, in the .380/.32ACP/9mmMak category.