Shevrock,
Here's my feeling:
In Short: handguns are defensive.
If you're going to where you know there will be trouble, and can't avoid it.. Take a long gun, and friends with long guns.
If you are talking about a situation where you'd be using a handgun, then you are automatically talking about a situation you are actively trying to get out of (at the very least, to go and get your long gun). so extended capacity shouldn't really come into play. Shoot who ever is preventing you from running, and run.
A .45 is very good in that application. Even if I only hit you in the wrist, you're slowed down for long enough that I'll be gone.
Yeah, It's a religious war... And I'm on the .45 side of it.. but I can see the other point of view. (The cheaper practice costs being the best argument I've heard on that.) Either should be fine... but if you're REALLY looking for a TEOTWAWKI weapon, my list (in order) would be
1) 12 ga
2) any other shotgun
3) .308 rifle
3) 5.56 rifle
4) .45 ACP
5) .357 magnum
6) 9mm
7) bow and arrows (dont' laugh, REALLY long term... no beating it...)
Just my opinion... but just so you know... I carry a .45 personally.
OneBigElf,
I would LOVE to hear more about your story, BTW. IM maybe?