Yeah, it's been discussed, but a lot of times people want a personalized answer. *shrug* What are you gonna do.
I think an excellent place to have a loaded shotgun is above the door frame on the inside of the closet in the master bedroom. If you don't tell anyone, no one will know it's there and it's easy to get too, even in the dark.
I personally prefer my 1911 for home defense, but I also have a 106# German Sheppard that will be making life hell for anyone foolish enough to set foot in his house, so the 1911, really, is going to be for finishing the job.