Hi spd522,
I agree with you that the small quality autos of today have many things to recommend them. (I'm looking very closely at the PM40 or the PM9.) But for someone that practices "not as often as they should" a small revolver is simpler into battery. (With less likelihood of experiencing a stoppage or malfunction.) And I know that people that carry very well should spend more time practicing....but sometimes they don't.
My wife's current CCW is a S&W 642, .38 +P rated. She shoots about once a month....which keeps her familiar with the gun to reasonable defensive ranges. But she spends her time practicing on presentation from the holster, shooting, and some time reloading. She doesn't feel that she spends enough time to maintain the required proficiency needed to be totally proficient with an auto. The difference for her is this. She doesn't feel that she is confident enough clearing stoppages, or malfunctions, to be able to perform it under stress. (But we may get her there yet!?) She does actually shoot most of our autos better than her revolver.......she just doesn't feel comfortable with it.......as she does the revolver!
My personal choice is currently an auto. (Though I haven't got rid of my S&W 649......nor do I intend to.

)
Dave