For civilian self defense ,compared to a semi, the revolver is supposed to be visually more intimidating as viewed from the business end [This is as ridiculous as claiming that the sound of a shotgun being pumped will scare someone away, or the 1911 fanboys that are all about the "big hole" scaring someone. GMAFB]; reputedly more 'jury friendly' if one ever has to do more than show the weapon to an assailant[Maybe. Still not enough to counterbalance the revolver's many disadvantages.], carries at least twice the amount of ammo one will ever need for the -average- self defense scenario [If I was relying on averages, I wouldn't carry a gun at all. As someone posted here once, it's not about the odds - it's about the stakes. Also, "average" implies that half the time you'll need more. Have fun with your five-shot when facing 2-3 guys and the rimfire ammo you suggest fails to fire once or twice. Why in the world would you choose to have less ammo??]and is deadly accurate at what would most probably be the distance involved.[The accuracy of the gun matters far, far less than the accuracy of the shooter.]
If a revolver isn't enough a semi will not be enough. [This makes no sense. Are you talking about maximum rounds, while ignoring the fact that there are 8-shot revolvers and 6-shot semis?]
Well adjusted people carry a Ruger lcr snub in either .22 wmr or 9mm [Why would you want to deal with unreliable rimfire ammo moonclips??? .38 or .357 hands down.]; if you like semis than that is fine if you 'need' a semi you really NEED a mental health care professional. [I'm not planning on "needing" a gun at all. If I was, I'd simply avoid whatever situation I'd be afraid of. Again, no one has ever come out of a gun fight wishing they had brought less ammo]
Question: you are in a life and death situation, in front of you are two very obviously neglected handguns-one is a revolver and one is a semi, barrels are pointed towards you and you must choose immediately-which one and why?[See above post.]