I would say Iloilo, in a town called Barotac Nuevo. I've been there, and was told to be careful with the people I talk to, and never to stay out late at night or walk alone down the dirt path especially on a full moon because ...this is what I was told... these aswangs will leave the lower half of there bodies (waist down), while the upper torso will develop wings and fly into the night looking for that victim and feast on their blood.
FYI... I was told that these people are somehow blood relatives.
P.S. And somehow my roots came from this town. Does this mean I one of them? Ha...ha... ha.. I hope I didn't scare you.
If I am, I don't need a car to drive. I can fly. Don't have to worry about gas inflation.
Another place is Samar. I was told this place is known for it's "barangan" a form of witchcraft similar to voodoo. You mess with the wrong crowd, and they'll make a replica of you. And with pins and needles, they can disfigure you.
I been to Samar and learned a few tricks without disappointing anyone.