Which is the best gun in Halo?

I'm with Webslug, the shotgun. If the game has one, it will be in my hands. I love the power, the sound, it's a crowd pleaser BOOM!

i like 2 weapons the shotgun for crowd controle and the energy blade for diving into a group of enemies hakin and slashin :)

I have multiple preferences.

Halo Combat Evolved & Anniversary(When it releases):
Assault Rifle
Pistol
Plasma Pistol
Shotgun
Rocket Launcher

Halo 2:
Brute Plasma Rifle
Covenant Carbine
Shotgun
Energy Sword
Rocket Launcher(TRACKING :3)

Halo 3:
Battle Rifle
Spiker
Gravity Hammer
Shotgun(My tip: Shoot first, and then melee.)
Sniper Rifle
Assault Rifle(Only when I'm against flood, it's unusually effective in times like that.)

Halo 3 ODST:
Automag
Assault Rifle(Has anyone noticed that ODST's AR is better than the original Halo 3 one?)
Sniper Rifle
Shotgun
Plasma Pistol

Halo Reach:
Assault Rifle
DMR
Shotgun
Grenade Launcher
Spiker
Energy Sword
Plasma Launcher
Rocket Launcher(HOORAY FOR THE RETURN OF TRACKING!!!!!!)