I think the reason for dracula being still the most known vampire in the world is because of the existance of such a huge pop-culture around it. There are childrens-songs for example or you dress up like dracula on halloween.
But I must also admit, that the beginning of the story is very captivating. The part where the protagonist first stumbles upon dracula and gradually finds out, that there is something not right about this man. Later it is a little bit boring though because we all know the popular motives around vampires: garlic, spiles, daggers, holy water, sunlight and so on and the characters take their time getting to know them.