A real revolver is all steel; carbon or stainless. It has heft and reduces felt recoil for those who need it. A revolver is rugged and reliable; beyond even a 1911, which I also swear by. It is simple in operation, and offers a level of safety under duress that most semi-auto pistols cannot approach. The revolver is powerful. It delivers relatively heavy bullets to the target compared with its semi-auto counterparts from an unmatched array of barrel lengths.
I may want my 1911 for self defense at home, but in the field give me a .357, 45 Long Colt or 44 Mag. Even the supposedly humble .38 Special, with the right bullets, is an excellent self defense and field round. No other handgun style is so versatile, yet specifically effective as the revolver.