I like a revolver for an HD pistol.
If things were really nasty, I'd only need it for my brief "tactical scurry" to the closet/safe to retrieve a long gun, so I don't see capacity as quite as big of an issue. And in the event things happened so fast I didn't have time to make it to the closet I probably wouldn't have time to get off more shots than I could manage with a revolver anyway.
But for investigating noises outside at night a revolver is just somehow more comforting.
And, I know that you're not supposed to investigate noises, but I live in a fox/racoon/bear kind of area with very low crime, and I have a 2-year-old. So, if I don't go outside (with the dogs) there's a good chance I'm going to have to clean up a field of diaper fragments off the lawn in the morning.
I'd think you'd want to keep a .44 loaded with "special" rather than "magnums".
I actually, at this point, have a 2 gun quick access safe bolted through the bottom of my bedside table into the floor. So I keep my EDC 9mm as well as my .357 with magnums inside.
But, when I just had the one, it was the .357 loaded with .38spl, and a speed loader of FMJ magnums I could put in if I needed to go outside.