The stereotypical vampire (in my mind) is the following:
-Thirst for blood (This could be the blood of animals, humans, virgins only, and so on, but there has to be some sort of bloodthirst)
-Weakness to sunlight (I'm not calling for horrific burning or instant disintegration ala Blade 2, but I am asking that sunlight, at the very least, weakens the vampire to an extent. I dunno, maybe to the strength of a normal human?)
-Undead (This is a biggie. While their are a few exceptions, those are reserved for dhampirs. Vampires who are not undead are little more than immortals with blood fetishes.)
-Enhanced strength, speed and resilience (lowered in sunlight naturally)
-Nearly impossible to kill (staking, decapitation, and/or burning are the obvious choices for kill techniques)
-Fear of holy symbols (This one is one of the optional ones. If it is used, then the religion of the vampire while they were still alive determines the symbols needed, as a crucifix will have little effect on a vampire who, in life, was a Shintoist, or believed in the Norse gods.)
-Slight shapeshifting ability (Again optional. It seems it would be useful, whether they change into a bat, wolf, mist, or just a slightly more good-looking humanoid figure)
-Alluring (Okay, now I'm heading full throttle to Hollywood Vamp fangirlism, as vampires are supposed to be blood-bloated corpses. However, if a vampire is alluring and, in the words of a die-hard Twilight fan I know, "OMGsexy!!!1!", this could aid in his quest for blood. Especially with the stupids of today, seeing beauty as a obvious sign of pure virtue, while anything ugly is not worth their time.)
-Flight (Okay. I'm a Hollywood Vamp fan to the bone. This is because of The Lost Boys. When someone made a Vampire: The Masquerade bloodline for them, my brain almost imploded. As such, this is also optional)
-No sparkling (This is obvious. If a vampire did sparkle, it would only be because he covered himself in body glitter in hopes of getting an easy meal via Twilight fans. Or it would only be his fangs glittering in the moonlight.)
I'm sure more can be said, but as such, I refuse to call the Twilight characters vampires. Meyer-pires or shampires, maybe. But compared to them, Count von Count from Sesame Street, Count Chocula and Count Fangula from Beetleborgs are in the same group as Dracula, Lestat and Carmilla. Sorry for the overdose of text here. Twilight is a favorite rage rant subject of mine.