I voted for the revolver. My only reason is that i had a colt python w/6" barrel in 357mag for some reason it always shot high at 25yds. This one day while shooting with a family member(local leo) I had my 357mag 140gr JHP speer reloads with me. I said for him to watch the small rock on the berm at 100yds. I pinged it for all six shots. He was amaised at how accurate it was. The revolver was dead on at 100yds with my 140gr reloads. Now my norinco 1911 will shoot one clover leaf per mag at 25yds. using wolf ball ammo. But its still a work in progress in building it. I can't rate it yet.
A revolver having good accuracy is a matter of the craftsman who built it. Wether its thrown together or the craftsman takes pride in his work/craft matters if its accurate or not. Were kind of at the mercy of the assembler who is building the revolver. With the auto we can make changes down the road to make it more accurate to a point but we can't make a silk purse out of a sows ear. Were going to reach a point were it is what it is and live with the accuracy were getting out of either the revolver or pistol right?
Accuracy= Is the quality of the gun, the ammo and if we do our part. If all things come together at the sametime we have good accuracy.