I'm a long time ME fan. ME1 was the reason i bought an xbox, and I've invested hundreds of hours in the series. I actually love the conclusion. The ending has really grown on me as I thought about it, I'll just post here what I've posted elsewhere in the forum. This is what I thought of it.
I managed to avoid completely spoiling myself, but I knew people hated it, that Shep died, and that something drastic happened at the very end. i braced myself for the worst.
I could clearly see why people are upset by the ending. The gamer in me hated the ending, its abruptness, its ambiguitity, and its lack of closure. What the hell happened with the Normandy? What happened to the races, and my friends (the ones left living by the end)? I wanted answers! I deserve answers, after who knows how many hours spent playing these games.
After letting the ending stew for a few days, playing some MP, starting an Adept playthrough, I decided I loved the IDEA of the ending, it was just incomplete.
I was reminded of 2001, mixed with some Matrix Revolutions and a side of Contact with Ender's Game. I love where they were going with the ending. I was expected the Dark Energy "mass relays use dark energy and the Reapers ensure everything doesn't die by stopping advanced civilizations from using the relays."
Instead, we got, for lack of a better term, some crazy S**t! Suddenly the game was delving deep into questions about the nature of the universe, time, chaos versus order, intelligent design. I really appreciate what BioWare was trying to do. This is not a videogame ending. It's a terrible videogame ending. But I think its a pretty cool ending to a piece of fiction.
The Starkid represented a vast, incomprehensible sythetic intelligence. While it was certainly the driving force behind the Reapers, I don't think it was directly controlling them like Harby controlled the Collectors. A lot of people have pointed out flaws in the Starkids logic. This makes sense, because it's logic IS flawed. It is trying to maintain an order, a "solution" to what it views as the chaos of organic evolution. This fits with what the Reapers have been telling us all along. Sovvy said "we impose order on the chaos..."
The Starkid's motiviation was not borne out of trying to preserve life, but preserve order. Thus I think the ending s less about the literal "i build synthetics to kill organics to prevent them building synthetics to kill them" and more about deep question of order vs chaos. The cycle, the Crucible, the war against the Reapers, it all comes across as a test. A system established before time by some intelligence (presumably organic: going by the Starkid's own words, he must have been created at some point). The Starkid is the caretaker of this system, the impetus that drives the rotation of the galaxy. The Reapers are just tools of that system. I don't think the Reapers truly understand the nature of their existence, but they do have purpose.
Shepard, as the first organic to compete the Crucible and "activate" the Catalyst, is the literal represention of chaos, just as the Starkid represents order. This diacotomy is also expressed in the final conversation between TIM and Andersen. The Starkid, although seemingly godlike from Shepard's POV, is ultimately just a much a slave to the system as a Reapers and TIM. It's unable to make the final choice, leaving that to Shepard. So really the choices boil down to:
Control: Accept the validity of the system, assuming the Starkid's role as a machine-god maintaining the "old order" of the galaxy (reminds me most of 2001)
Synth: The system is flawed because it only represents one half of the universe's order: the synthetic, logical, scientific approach. It requires the inherently chaotic input of an organic lifeform to achieve balance.
Destroy: The system is flawed beyond repair. It nullifies free will by "determining" the continued, "harvested" existence of organic life is more valuable than the life in of its own. It values preservation of the order over faith in evolution to drive on its own.
This is how I interpreted the endings. I love the idea of these endings. BioWare has some cajones to let Shepard decide the ultimate fate of the galaxy from a metaphysical level.
WHAT I HATE IS THE IMPLEMENTATION
These endings are HUGE. I mean, this is the ultimate choice: you're basically confronted by a god and asked how you think the universe should procede from here. Yet the critics who say the theres only 1 ending, 3 colors, are absolutely right. We aren't shown anything that happened, just some silly "Lost" esque sequence with the Normandy and a bunch of stuff blowing up. What happened to the fleets? Our friends? The Citadel? Th explosions from the relays? WHAT HAPPENED TO THE GALAXY AFTER I DETERMINED ITS VERY NATURE???
It's disappointing, because I really believe if BioWare had just provided some closure the fans would have embrace d these endings and the idea behind them. As it is, all we get is the Stargazer thing, which was cool, but all that told was some life survived, along with legends of Shepard. Hell, even just text would have done. Did the geth rebel again? What happened to the fleets? Were all the relays destroyed, and the solar systems with them? Just want answers!!!!!!
TLDR: BioWare, I love the direction that you went with in the ending. I love how you truly tried to transcend the tired videogame format. But as a gamer, I want some closure to the choices I've made throughout this game. Just tell us what happened!