IMO the SIGs would probably have the best out-of-box accuracy on paper, but unless this is for competition target shooting it really does not matter. Any of these pistols would be a fine choice for an easy, accurate plinker or home/personal defense gun. They will each, in the right hands, produce a tight (<6") group at 15yds, and that's all you need a handgun to do unless you're into competition shooting. What's more important is the shooter; only the best competition shooters are steady and focused enough to shoot a tighter grouping than the average nine's natural grouping. Of the ones you listed, choose the one that fits and feels best in your hands and provides the sight picture you are most comfortable with. Most have a simple 3-dot which is easy to acquire and, when properly done, is highly accurate. Others have "fast-acquisition" sights such as 2-dot or dot and bracket that allow the shooter to gain a useably accurate sight picture quickly, but are harder to dial in to an "absolute zero" picture. YMMV, but I prefer 3-dot for practically all applications; pointing the weapon at the BG and pulling the trigger doesn't require sights once you develop a little muscle memory.