Jesus - he encouraged people to eat his flesh, he himself was a zombie, and he'd be a perfect decoy - he could easily feed 500 zombies
Darth Vader - his suit means he cannot be scratched or bitten so he's immune from turning, and there is no better anti-zombie device than a lightsaber (except maybe a lightchainsaw). Plus it would be fun to hear him and Jesus talk about who had the worst childhood without a legit father