I didn't think FFXIII's ending was really that bad. It was certainly no worse than the rest of it. It had that one huge cop-out moment but otherwise I liked it.

FFXIII-2, on the other hand, felt like SE spit in our face. There's no excuse to have an ending like that. This isn't a movie where we can sit for two hours and then be ready for the next one, a game with 30 hours of your life invested in it deserves a bit more closure than that.

I haven't played ME3 so I can't comment, but aren't the endings of the ME games totally dependent on the choices you make in the game and who survives until the end?

In general, I don't think game endings or game writing is in trouble. Back in the day, 'Congratulations for saving the world', followed by the end credits was enough. We've come a long way since then. Game writing is still pretty good, see the Batman, ME, or Uncharted games. Even Skyward Sword has some of the best writing in a Zelda game I've seen in a while. Only SE has been disappointing, but that's because they set the bar so high for themselves. They are really trying to hard to make a splash when all they really need to do is make something good.