Rey's Parentage
I thought it was fairly obvious that she was a Skywalker; she even reminded me of Anakin with her piloting and mechanical skills. Anakin's saber wouldn't just call out to anyone. To defeat Kylo Ren the way she did, I think there's just no chance an ordinary "force attuned" individual could do that with little or no training (her memories could be suppressed).
Then I go on

and see people saying she an effing Kenobi? Seriously wtf? If she ends up not being Luke's daughter I will be pretty disappointed. The film built up to the moment when the two finally met. It may seem cliche but this is Star Wars, and it is about the Skywalkers. I see Rey as the true heir of Luke and Anakin. Kylo may have known Luke had a daughter, but didn't know that his daughter was Rey. Maybe Rey's mother was killed in the Temple attack and it was so traumatizing that Rey literally blocked all those memories out, and Luke then sent his daughter off where she'd be safe, mirroring Episode III.
That's my take anyway. What do you guys think?