A Gun for Zombie

Not to be Confused with the Classic: "A Gun for Dinosaur"

Question for discussion:
What is the best gun for killing ( ? ) zombies?
Consider rate of fire, reload-rate, stopping-power, amount of available ammo, etc.

Check out the whole list here.


My nomination:


My buddy's call:

I can see his point. Tom-ay-to versus tom-ah-to.