Which Story Idea do You Like Best?

'Kay, so I don't normally do things like this, but I've got these ideas, and I can't decide which to write, so I need help. Thanks!

So, which idea is best?

1. (Realistic fiction) Jack Clark is arguably the best player on the football team. That is, until he ends up unconscious after a particularly rough tackle. He wakes up at the hospital the next morning to discover that not only does he have a broken arm, he has leukemia. While he's wallowing in self-pity, he meets the mysterious Kaita Holt-Hansen, a girl with a brain tumor who teaches him what it means to be a teammate, a friend, and a person.

2. (Fantasy) In a war-raged magical land, teenage Eston is assigned to escort one of the four princesses, who were sent to earth as infants for their safety, back to her throne. However, Princess Adele was not what he was expecting. Rude, conceited, and stubborn, Adele will have nothing to do with Estan. Which lands both of them in a world of hurt.

3. (Realistic fiction) Isolde's older sister, Anneliese, was kidnapped when she was six and her sister twelve. Now, nine years later, Isolde is used to life without her sister. Anneliese, however, has just escaped from her captor with nineteen year-old Thomas and seven year-old Aidan. In order to stay free, the three adopt new identities. But will Isolde recognize her sister and accidentally blow her cover? Or does Isolde even want anything to do with her sister at all?

4. (Fantasy) Deathly ill Acelynn goes to bed thinking--and hoping--she won't survive the night. She doesn't wake up dead, or on Earth, however, but in a magical dreamland. She finds herself pulled into the adventurous Alysstiar and the mute Silla's journey to find family, and ends up discovering a cute boy and a reason to live. Can she get out though, or will she be stuck in the dreamland forever? And is being stuck really such a bad thing?

What do you think?

(Edit: Here's a count of the votes, mostly for my sake: 
1: 2
2: 1
3: 1
4: 5 )