I've use all of the shotguns a little bit and the Executioner a lot. I feel safer (yeah, safer) than I do with even the 870. The KSG is too quirky for me, the Saiga is a Saiga, the 870 (as good as it actually is) doesn't suit me at all, and the 1216 is pft if nothing else.
So yeah, the Executioner is my favorite shotgun. come at me