Are there any left out?
This new show on Court TV covers this and similar topics it’s called The Smoking Gun. It’s on this Monday and Tuesday, 10:30pm EST. It’s from the hilarious website from the same name.
It’s definitely worth watching!
Welcome to the Straight Dope Message Boards, duba, I think we’re glad to have you with us.
However, both of your posts so far have been advertisements for shows on Court TV. That’s not acceptable. If you’re here to join our merry crew, you’re more than welcome, and please read the rules and guidelinees. If you’re just here to advertise, then I rescind my welcome and your posts will be de-magnitized.
I always thought it was chainsaw, shotgun, rocket launcher (not necessarily in that order.)
Yeah, I would think Redeemer or Rail Gun should be on the list somewhere. 
My favorite is either the chainsaw or crowbar. Each holds a special place in my heart. But I think my most frequently used weapon is some kind of sword, usually a longsword with some kind of enchantment. Probably a Flame Brand +2.
Man, the plasma rifle never gets any respect. Just as fast as a chaingun, more damage, and three times the ammo.
But my favorite is still the Wizard’s wand, with unlimited ammo and range, penetrating, and instant hits.
My biting wit.
When that fails, just biting.
What about the pointed stick?
Fresh fruit 
The most commonly used weapon is clearly the knife. Most everyone uses a knife every day. Now, most of these times the knives in question aren’t being used as weapons, but I believe it remains a fact that knives are the most commonly used weapons.
Although fresh fruit might be close.
Pillowcase full of doorknobs, preferably brass. More common than you might think.
Has anyone noticed how carefully the baked-goods industry guards the stats on cream pies?
I smell a conspiracy.
People always overlook a stick with dog poop on the end. Nothing gets 'em running away faster.
Does B.O. count, or are we avoiding biological weapons at this point?
I love the smell of conspiracy in the morning. It smells like… Boston Creme Pie?
Sackful of doorknobs +5, holy avenger
Come at me with the banana!
I always liked the freeze gun. After freezing an opponent, I’d switch to handgun and say “Hasta la vista, baby,” in an Austrian accent before shattering them into bitty pieces.
19 posts and no-one has brought up. . .
“Death Rays”
of some sort. . .
around these parts at any rate.