This is what I carry.
Good old fashion Smith Airweight.
1. Goes bang every time I pull the trigger, even in a pocket. 2. Light enough that I don't walk loopsided. 3. +P ammo does a very good job. 4. Accurate at knife distance where most shootings occur.
If I really need high capacity, face multiple adversaries or the ability to touch someone over 100 feet.
Forget a pistol, I'll bring my M1A