I would have to go with Werewolf.
Vampires can fucking fly, hypnotize you, have super strength, etc. Not a great chance of survival.
Zombies, well, I suppose it depends on the size of the horde. However you get bit by one, and even if you kill them all, you still lose. Plus, really bad smell.
A Werewolf seems the best chance to survive.
They are generally portrayed as being far more vulnerable to silver than vampires are to any of their weaknesses.
They can be outsmarted because their instinct takes over. Also, you have to survive for the least amount of time. While a vampire is likely to escape at sunrise and live to hunt you another day, zombie can keep going for fucking ever, a werewolf is completely vulnerable to attack. Moreover, just because vampires sleep during the day and have to avoid the sun doesn't mean they lose their power and you'd be able to easily stake them, werewolves on the other are generally unconscious after transforming back to human.