I'll use my two mains from my comic Catihorn.
Raul would be the level headed survivor, mostly sticking to secluded areas and just doing his best to find food, and water, and survive, but still capable of fighting or escaping bad situations when needed. He'd probably survive quite a while.
Uni would be the idiot who grabs as many guns as possible and goes on a zombie hunting spree. The sad part is he's actually fairly smart, and would probably find a way to survive fairly well so long as he stuck to guns and didn't get close enough to anything to be bitten.
Next Question:
What is your greatest fear?