Concealed Carry and Open carry are just that ; Carried.
Brandishing a weapon is having it in your hand for use. You dont even have to point it.
I dont know the statistics, but simply haveing a gun (and the perp knows it) has stopped/prevented more crimes than we will be able to count.
You win when the perp decides NOT to commit a crime against you, in his head, before committing the crime.
Its as simple as a criminal spots a cop, who he knows has a gun, and changes course..........and along that line, etc.