Retism:
Hawke said most of what I was going to say, but you have to understand that Kylo was very seriously injured. Finn was running the whole time, only deflecting blows, not attacking. I think they did that scene wonderfully.
And about the Snoke = Plagueis thing, I don't think it's him. The sith are ancient, and there are much more than what they just mentioned in the movie.
Though, I don't dispute it as strongly as Hawke. I believe he could be Plagueis. He could have ended up bring himself "back to life" (near death, reviving himself) several times, which would explain his partially melted skin and disfigurement from what a Muun is supposed to look like.
Avatar: Ik, I watched the movie when it came out, despite the trailer. Figured I might as well, and just hope for the best.
It literally made me hate Shamalan. How can you fuck something like that up so bad? It's like he had never even heard of the show, let alone even watched the first episode to hear how "Aang" was pronounced.
Apparently they're actually making all 3. I think the 2nd one is already out.