If I clearly see something, or experience something considered paranormal, then I believe it to be real.I've seen UFOs, a Sasquatch, and I lived in a haunted house, so I believe in all of those things. As a Christian, I also believe in Angels, and sadly, in demons also..
When I say vampires, I mean those psychic vampire-types, those clingy, negative people who try and bring you down and drain you of your positivity and energy (financial, emotional, spiritual, etc.) be it in your workplace, a relative, a demanding/controlling spouse or boyfriend/girlfriend or just one of the members of your friend-circle.
Also, I think werewolves could exist and perhaps I am one, because every full moon I tend to get this amazing capability to scratch behind my ears using just my toe-nails. On those particular days, I also tend to snap at the heels and chase the postman down the street. Moreover, psychic vamps never seem to like me so much because I don't entertain them. It's like a battle scene from the Underworld series between the lycans and the death-dealers, except, the aggression between us is more of a passive one. Peculiar, ain't it?
There isn't a box to vote 'none' because the question is which of those things you believe exists, if you don't believe they exist then you can't vote! I'm not interested in what you don't believe in but what you do believe in!