Great thread. However IMHO, we should really look at the terms "inherent accuracy or level of precision" instead of accuracy of the pistol in this case. Go to your old high school physics books or Google accuracy vs precision.
Accuracy comes from the shooter and is a combination of technique and experience with a small portion going to how well the gun fits ones personal preference including trigger type and pull. Precision is simply how well the gun is designed and manufactured. If we place a pistol in a ransom rest, shoot a few, the size of the group will determine it's level of precision. Custom built, small batch manufactured pistols like the S&W PPC 9, 952, SIG P210, X-Six, STI'S, Korth, Pardini's, Tanfoglio's, high end custom 1911's, and so on will all shoot very tight repeatable groups with the right ammunition and are considered precise. Mass manufactured pistols (Glock, M&P, Springfield) with lower tolerances are not as precise and will have larger groups if placed in the same rest. (As a side note, I consider the CZ the top of the line when it comes to the precision level of mass manufactured guns...period)
A well trained person with years of experience with an out of the box Glock or M&P will outshoot most of us no matter what gun we use. However, at some point, no matter how experienced you get with any pistol, you can only shoot as tight as that particular gun allows (a problem few of us will ever encounter).
I would love to set up ransom rest at a range on a consistent weather day with a case of high quality ammo and shooting five shots out to 25m with every pistol I could get my hands on just to see what kind of results one would end up with. Might end up with a few surprises.