BmB said:
If not for Rey’s annoying “I don’t need no help from a MAN” attitude Finn would be little more than a Gary Stu counterpart. His ability to fight competently with a lightsaber without any training or force sensitivity at all is insane.

There is no correlation. It is not because she’s a woman. It’s because she’s a mary sue. However, conversely it is highly likely that she was written to be a mary sue because she’s a woman. The current political climate is such that any character flaw on a female lead that is beyond superficial is likely to be seen by those who like to be outraged as a direct attack on women. And we all know hollywood does not take risks like that.

Criticism of these shallow characters is likely to be seen as an attack on women too, for some reason. In a lot of ways it’s perfect marketing ploy. You can’t criticize the film because the leads are oppressed minorities, and you especially cannot criticize those characters. If I say “Harrison Ford was sleeping through it.” you won’t bat an eyelid. If I say “Rey is a Mary Sue and Boyega can’t act” I’m a racist and misogynist. Or what?

This is more or less what I was getting at. I’m glad for the likable leads who aren’t just white guys, and I think the meaning and impact of making that decision would have been more powerful if they weren’t hypercharged JJ Abrams characters who are übercomletent and excellent at everything.

EDIT: For the record, Anakin in TPM comes close to being a Mary Sue. I can think, though, of a scenes en route to and on Coruscant that depict him as out of his element and doubting himself. But I’d submit him as having the same qualities, more of less, that I am picking out of Rey.
Also, if you’ve seen Plinkett’s video about JJ’s Star Trek '09, it’s similar to his critique of how Abramd pumped the characters up to the degree that they’re all supergeniuses. But the lead few characters have clear flaws that are addressed in the story. Maybe Rey will too, in the broad scheme of things across the whole trilogy, but I felt this was underwhelming in TFA in isolation.