A lot of that comes down to individual tastes. If they are only issuing one model, then they missed the most important part of the shootability package: the shooter. Personally, for instance, I do not care for the feel or pointability of Sig's very high quality products. Ditto the old SA/DA Smiths. I can learn 'em, but they are not instinctive...
...but give me a P-35, or the XD whose grip frame was inspired by it, and I can make it sing.
So, now that we've left out the shooter, we can get down to picking a cartridge. For use in a crowd, and always indoors, and possibly in the dark, I cannot imagine a worse choice than a .357, whether magnum OR Sig. Throwing out overpenetration, which could happen with any cartridge in a crowd, you still have blast & flash which are substantial with the Sig round.
You'll probably never NEED a gun. I hope you never do. But IF you do, you will need it worse than anything you've ever needed in your life.
IF we're not supposed to eat animals,
howcome God made 'em outta meat?