Dazler vs. The Peeper
Galactis vs. BAMF
Wolverine vs. Bugs Bunny
The entire Justice League vs. The Family Circus. That I’d like to see!
Daria vs. The Hulk. “Oh, right, growl and smash things, that’ll really im … AAAAAAGH!”
Actually, they did a sort of Black Bolt vs. Dazzler in one issue of Dazzler–he supercharged her light attack so she could freakin’ nuke somebody. He thought it was neat because it was pretty much the first time he had ever been allowed to use his power full out (that whole leveling-mountains thing, you know). I don’t remember who she shot, but he was v. unhappy…
Another quickie fight that also happened: Dazzler vs. The Claw. He grabbed her and she just sort of slurped him right up, what with him being made of pure sound and all…
Surely a very long fight, until the poor guy gives up and goes home.
Conan the Barbarian vs Groo the Wanderer…no, wait, that wouldn’t be a short fight, just a very funny one.
Hamster Huey vs. The Gooey Kablooie! 
Conan the Barbarian vs. Cherry Poptart
Not exactly a FIGHT, but it would be over quick . . .
Not a short fight, but I’d like to see John Constantine vs. Batman.
They’d irritate one another to death.
(somehow, I get the feeling that this has been done somewhere)
The Newsboy Legion vs. The Dingbats of Danger Street
You’d have a Kirby implosion! poof! over in a nano-second.
Inviso-Lad vs. The Shadow
They couldn’t see each other and there’d be no fight.
I believe Peter David did something close to this in an issue of Soulsearchers and Company (Claypool Comics). It was intended to be a riff of Tom DeFalco’s claim that DC’s Sandman was too cerebral and boring, and that DeFalco’s own Sleepwalker was “Sandman done right.” :rolleyes: The standout gag of the showdown was no one being able to understand DC Sandman, because he kept talking with white letters on black word ballons. 
And another vote for Conan vs. Groo!
not really post I mean if this post Alan Moore Swamp thing i don’t care how man bodies popey is able to kill Sampy can just keep coming
Popeye VS. The Swamp Thing after he’s unfortunately manifested out of a field of spinich
not really. If this post Alan Moore Swamp thing i don’t care how man bodies Popeye is able to kill, Sampy can just keep coming
Galactus vs. 'Mazing Man. Hey, they wear practically the same helmet…
Has Batman vs. The Roadrunner been the subject of a thread or something? It just occurred to me, but I’m not sure if I came up with it or remembered it.
It matters not since this point of this thread is shortbattles, not neverending battles.
Anyway, back to the OP:
Dennis the Menace vs. Doctor Doom
Baby Huey vs. Darkseid
Archie Andrews vs. Thanos w/Infinity Gauntlet
Scooby Doo and Shaggy vs. The Incredible Hulk
I enjoyed the specifics of this one. Because, you know, if Thanos *isn’t *wielding the Infinity Gauntlet, a battle with Archie could go on for hours…
I dunno; Baby Huey is protected by the Negative IQ Equation, which states that any cartoon character with an IQ effectively less than zero cannot be harmed, because he is too stupid to realize that he’s in danger. Any attempt to harm him simply boomerangs back upon his assailant. This is in fact the most potent superpower in the known omniverse.
But he can be harmed INDIRECTLY, since there’s nothing to boomerang to if nothing directly attacked him. So darksied could make a pit with a nuclear missle inside and baby huey woudl fall in, causing DEATH!