I just finished the game...
I can't believe what a terrible impression the endings left me with. The game was awesome, I actually almost burst into tears a few times while playing, it was -that good-. I quickly forgave it it's simplified dialogues, because I couldn't get enough of the story and well executed apocalyptic themes. Nothing could go wrong, or so it seemed.
Then god-child shows up, I'm given three "press a button to make ultimate choice" endings, and maybe that wouldn't have been so bad if they didn't differ only in the shockwave color (blue/green/red). If that's the only and final ending we're going to get, why couldn't have Shepard just bled out next to Anderson amidst exploding Reapers? That would have ironically been better. I don't get it, Reapers gone (one way or another), relays destroyed, crew stranded on a planet, where's the difference, where's the choice, what's the point? It makes no sense, is utterly pointless and hollow, and provides zero closure no matter your choices.
Is this the epic conclusion I've waited for years to see? Really? Oh God, I'll just pretend Shepard bled out next to Anderson and the latter part is some horrible mistake.