My P7 PSP is a cool, ingenious design. Simple enough that I could probably remember to just squeeze the grip to fire it. Very accurate, too.
That said, I vote .45 cal 1911. Why?
- among major caliber handguns it gives me the best combo of speed & accuracy. - reliability among the good ones is completely satisfactory. - Among guns that hold more shots, they either aren't .45's, or they don't fit my hand, or I just don't shoot them that well.
If I KNEW someone bad was about to come in the house, like T Lee said, they would likely be met by .30 cal projectiles...
