re: It’s 2:43 AM and someone just broke into your home. Which one will you choose?

Anyone who says #3 likely has no tactical training and/or highly overestimate their ability with a shotgun because they use it to hunt. Well, this ain't a dove hunt.

#2. Click off safety and start ripping.

Also, anyone who says "over-penetration" is an idiot. Any of the choices would blow through multiple walls in your average house without hitting a stud, and even the a slug or 00 buck would keep going. At least with the AR that round will begin to fragment.