for self defense I like the taurus judge. That being said everyone knows the sound of a good pump action, and they may start running before they even see ya.
Pistol is superior IMO for several reasons.
Would love to keep one beside. Just can't with small children poking around everywhere.
I can have a handgun stashed in every room of the house, plus carry one on my hip. It's a lot harder to do that with a shotgun.