Q : Are those mentioned vampires undeads of some kind?
would you consider Tony stark a undead since he is would be dead without an external power source?
A vampire needn't be undead in my personal 'broad' notion.
In this case, even Dracula didn't die under the sunlight so it's loose to a degree
Does that mean one notion of 'Vampire' is better? Or the truth?
It is also based on the interpretation of one of the first guys who got successful at selling a book based on a culturally-old popular folklor myth from a land he wasn't from (sup Bram Stoker).
There is no vampire that sparkle in the sun in any popular culture that isn't under 5 year old.