Ah, man! I was thinking of writing an academic paper on this. But it’s out in USA Today, so I think I’m too late.
The differences in rules/life with vampires:
What just happened to me?
True Blood: A vampire drained your blood and replaced it with some of his own; the two of you were buried together for a day to transfer his vampire’s “essence” to you. Then you rose as a vampire.
Twilight: A vampire bit you in several places, injecting venom that coursed through your veins, incinerating your organs and finally stopping your heart.
Angel: You got dialysis, vampire style — you were drained and buried, and then drank from your sire.
There are many more. Go and enjoy.