30th dec - after the 3rd time - Rey
Why rey is miracle child of the force even better than anakin ever was
She is a really quick learner. How the hell she knows how to fly the falcon like the back of her hand remains a mystery for now.
However: immediately after being introduced to the force, she managed the jedi mind trick. I believe she learned directly from kylo ren. Before, she resisted ren's mindpowers. What the hell indeed. Remember, luke only repeated the jed mind trick many years after seeing ben kenobi doing it. And that was after he had the jedi training with yoda.
Then, she actually mastered the light saber after seeing finn fight with ren. Prior, she had never seen it in action or even wield it.
Her force-power was activated by the mere word of "the force" and just by remembering what maz kanata said, she becomes a very strong user. Ren, your training would never suffice. Maz kanata is the true teacher here.
Because rey is a wonder child and her mind is like a sponge. Actually she is more like in matrix you just upload a program and suddenly you know how to do stuff? That is Rey.
I don't know now is she a solo or a skywalker? Maybe neither, she can be just as special without any royal/strong-force lineage running through her blood. I hope she is.