I should add I wasn't arguing in favor of a revolver. I wasn't arguing against either. I think it always comes down to what the person comfortably shoots the best. I think in most cases, that's probably autos.
On the safety argument, I agree with "the safety is between the ears". If you're getting a gun for self defense, learn properly and practice regularly (or at the very, very, very least, a few times year). If you're just going to shoot a few different guns, pick one, then stick it in the nightstand lockbox and maybe take it out to look at once a year, it probably doesn't matter if it's a .22 revolver or a .50AE. :)