I need a story which one should I choose to write?

1: Kai meets a girl named Caramel, and discovers she's a vampire. Also he finds she goes to his school and follows the students to drink their blood. When the rest of the boys find out they try to keep her from drinking the blood. Will it work?

2: Brooklyn has been acting weird lately and everyone trys to find out why. They get suspicious when a girl comes to the door and Brooklyn let's her through saying she'll be staying with them. Could this girl be his lost sister?

3: At a high school reunion an old rivalry between Hilary and Mariah heats up and the girls plan a dangerous bet to see who's better. (Will turn out badly for one of the girls). What should bet be?

Sorry for not having any stories up but I can't think or choose any that I think I like, so I'd like you guys to help!

Sincerely,

Icephoenix12