Who would you choose to battle the creeper with you?

I'd get a whole army!
Consisting of:

Optimus Prime (Do I really need an explaination?)
Terminator (Same as Prime...)
Hulk (HULK SMASH PUNY DEMON!)
Chuck Norris (HAHA!)
A Predator (All those weapons, all that kick ass alien glory...)

and of course:

"SAY HELLO TO MY LITTLE FRIEND!" *pulls out Tommy Gun, and charges with my army towards the Creeper*

It will be a sad day in the Creeper's crapper full of constipation when I allow him to eat any part of me!

Jason Voorhees. He's badass, he can't die, he regenerates, he's uber strong, need I go on?

If for some reason Jason fails: Alucard or Alexander Anderson from Hellsing. Monster exterminators extraordinaire! Alucard would toy with the creeper for weeks, letting the creeper kill him over and over for the 3 weeks, then finally sic'ing Baskerville on him. Anderson would just launch a billion blessed bayonets at him.

Freddy Krueger. Because it's always good to have a backup. 23 years of pure hell has to mean something.

SSJ4 Gogeta: Let's face it, he could destroy half the universe with a Big Bang Kamehameha. Even if the creeper could survive that, he'd die of starvation after Gogeta blows up the planet.

maria ozawa :p