It all boils down to personal preference. And like Dirty Harry said, opinions are like assh*les everyone has one.
If you like the way a gun feels in your hands, it’s comfortable to shoot and you like to shoot and carry it, then it’s the gun for you regardless of caliber, size or external controls.
Personally I’m not a fan of DA/SA guns like the Sig. Switching from a hard and long trigger pull to a short single action trigger pull usually means one or the other will go wild.
My preference is striker fired pistols like the XD or S&W you mentioned but even then I prefer Glocks over all the others.
Find the gun that fits your hand well and is comfortable to shoot. Never buy a gun that won’t fire without a magazine in the well. Stuff like loaded chamber indicators are the equivalent of idiot lights on cars. They are mechanical devices that can fail and you should never rely on them.
The grip safety and loaded chamber indicator on the XD pistols are so they can import them to the US. The trigger pull out of the box on the XD can vary from 3.5 to 7 pounds per the manual. However there are excellent aftermarket drop in kits.
Good info. Thanks.