handguns are anemic, defensive weapons. none of them have what could be called "knock-down" power. Put it this way- if the recoil is negligible, so is the terminal impactWOW! You've never fired a .454 before have you ;-)
Auto-Ordnance you can't beat Thompson!
NSWU8 Panama had a name for the issue 9mm Beretta (sp) jam-in-the-sand-Beretta, They use sig very nice but for 9mm I think you can't go wrong with H&K