Mass Effect 3 has every chance to be an absolutely beautifully done emotional story. This is what I'm hoping for. I'm hoping that all my emotions are engaged, not just my "crushing despair" one. Because then it feels manipulative.
Everyone understands that war is hell and there is tragedy and you are no doubt going to see that and feel that. From a storytelling standpoint the problem only comes if you over-do it. Piling tragic image upon tragic circumstance upon horrible soul crushing event after soul crushing event desensitizes. It almost makes the player say "yes, we get it. It's sad." You don't wanna make it too "This is really sad. Did you see how sad that was. What about that other sad thing? Did you cry? How about this? This is sad. Look how sad this is."
The truly emotional moments should definitely be in the game, but used when they're needed and not just as a manipulative ploy to make you feel something.
I'm expecting good things. I'm expecting to feel happy where appropriate, indifferent where appropriate and absolutely crushed where appropriate. At least I hope.