Who would win in a fight between a vampire and a werewolf?

As this is a question with no historical evidence, there are several acceptable answers to this question.

Werewolf Victory

A werewolf would win because of its super strength, agility, speed, and stamina. Look at the movies Underworld, Twilight, and Van Helsing. They all include a werewolf whooping a vampire's ass.

Vampire Victory

The strength of a werewolf is entirely dependent on the lunar cycle. Within 2-3 days of the change to being a werewolf (both prior and post) and during the "wolf" period, the werewolf is significantly stronger than the vampire and this seems to to be corroborated by most vampire and werewolf sources. However, this period of strength lasts for around one week per month. During the remainder of the period, the werewolf is reduced to the strength and fortitude of a normal human, ages like a normal human, and can be wounded like a normal human. The vampire, by contrast is continuously in a state of physical prowess, provided he is well-fed, moving more quickly than a normal human, having better reflexes than a normal human, and being more sensitive (stronger sense of smell, sight, etc.) than a normal human. Therefore the contest between the vampire and werewolf, should by the power of odds, be resolved nearly 80% of the time in the vampire's favor and only 20% of the time in werewolf's favor.