Pre-Lock Smith and Wesson 686+ 4 inch barrel .357
Ruger GP100 .357
Pre Lock Smith and Wesson 625 .45 ACP
I wouldn't feel the least bit unarmed with any of those guns or calibers. Hell with a 625 you not only can load it as fast if not faster then a mag fed semi auto, you can keep more ammo ready to go on moon clips much cheaper then you could with a mag fed semi.
Hell I have all the options in the world and I still choose a revolver in most instances. I am not an old curmudgeon either. Ok I am not old.