I have a Springfield .45 XD and a Shockwave with light/laser in my bedroom. With loved ones in the house I do not feel a rifle round has any business defending the home due to over penetration. The same can be said for 00 buck, but for me, those extra pellets heading downrange outweighs this concern.
A pistol is fast and easy to manipulate, but easily taken away rounding a corner if you do it wrong. A short carbine with sling ties the weapon to me giving me an advantage. My home layout puts all bedrooms down one hallway creating a death funnel to whoever goes into it. I have line of sight to the front door and living room, but moving to the hallway and you are at the little end funneling bullets.
My job as Dad/husband is to protect my family, not ensure anyone who enters is killed at the risk of myself leaving my family defenseless. So long as I wake and get to my weapon before they get into that hallway my plan is to call 911, cover the hallway and wait for the Calvary.
I am former LE and Army. I've been trained in hunt/kill scenarios. Clearing my home by myself is a death wish. FAR too many hidden corners.
So, for me, given the opportunity I will grab my Shockwave. Besides the 00 buck, the audible message of a shotgun racking is powerful. But, it only gives me a few shots before reloading and as mentioned above fine motor skills free fall under duress. I'm not prepared to bet my families lives there is but one intruder or I won't need more shots.
For this reason I am considering going to a Scorpion with brace. Compact, sling, 30 rounds, easily mounted optics/lights, widely used platform in LE in other countries. Besides that, I'm a CZ slut.