A joke was that Gears of War 3 managed to have a more epic ending. Well it had closure anyway.
I do think the Original Ending sequence, from a cinematic standpoint, got it right up through Best Seats in the House. It was 3:15 a.m on March 22, 2012 when Shepard collapsed on the floor. That sequence was extremely well done. It was epic. Then the whole thing was destroyed in the last five minutes. The condition Shepard was in, there could be no confrontation, no boss fight. Not without involving indoctrination in her mind.
I think this is where the symbolism and indoctrination theory part comes in when making the choice at the end. Under this Shepard needed to wake up and destroy the reaper to complete her mission. The other two choices were the indoctrination choices. That's what I believed at the time I played it.
Afterward, when the game ended, I was emotionally drained, and I went to bed. It was 3:20 a.m. and I'd just blown up the galaxy. I thought I'd done something wrong. I couldn't sleep, so I got up and went on Youtube, and I found the other endings. They were vitually identical. It didn't matter.
To me, the EC simply applies a coating of saccharine, not sugar, to the ending. Many of you never tasted saccharine. It was a popular artificial sweetener. It is much sweeter than Equal or Sucralose, but it leaves a bitter aftertaste.
The EC destroyed many people's head canon about the control ending. A lot of people chose control as a way to get around destroying the geth, but they still chose to destroy the reapers by flying them into stars. After the EC, they sacrificed themselves to become something greater. They command an army that none shall dare oppose, and they will forever watch over the many.
I remember the arguments about the Synthesis ending, too. The way this was written even in the EC doesn't make much sense. It's too magical. Too happy. It sounds too good to be true. But you wouldn't understand and there isn't time to explain.