And the seas turned to blood….I guess this is the true barometer of the times, we have gone from economic discussions to guns.
In all seriousness, this is a mercedes/bmw decision, both are excellent. The glock is easier to maintain but has no safety, a fine combat weapon, but not a home defense for the casual user weapon. Actually the sig is just as good, has a safety, but will require a tad more training to become accurate. In either case stay away from the .45’s unless you were in the military and already know how to shoot one. They have too low a capacity and the learning curve is much higher.
I reccommend an 870 shotgun for home defense and a hammerless s&w airweight .38 for personal defense. Hammerless revolvers are old technology but they have a much lower accidental discharge rate and are simple to operate and maintain. The shotgun argument for home defense has many angles, it is more powerful than any handgun, has more versatility as it can take a variety of ammo, it is easier to hit the target under duress for the casual user and they are almost invincible/last forever.