The Indoctrination Theory. Just spent about a hour reading/watching videos, and it Boggles My Mind! I had heard about people hating the ending, and knew there was a video titled "Why we hate the ME3 ending"...but after beating the game, my initial reaction was...THAT WAS FUCKING AWESOME. Lol.
Although now, after reading a lot of theories I'm not so confident in my decision.
Fuck you Internet! I decided to go with SYNTHESIS. And as I read the theories, that would indicate that I failed, and I succumb to the indoctrination process. Is it weird that I really based my whole decision around Joker and EDI? I played full Paragon, so I obviously wasn't going to control the reapers. But with the Destroy choice, I've worked my ass off to make EDI into what was essentially human, and Joker was actually getting some booty! Not mention turning the Geth into a non-hostile race who was actually helping the Quarians, so while that choice would have 'destroyed the reapers'...I didn't want to destroy all those other synthetics who helped me along the way. Synthesis seemed like the 'Perfect Ending' to me. And when you see the final scene with Joker/EDI standing on the planet, which is exactly what I wanted, not to mention Cyber Joker, which I would think means his disorder should be healed...I actually really enjoyed how it all turned out.
Hell, I still think Synthesis is "Good." None of my squad dies, Reapers got what they wanted so they're not going to attempt to destroy the world again, Organics are stronger and now everyone can be superhuman like Cyber Shepard, as well as Synthetics getting a chance to live a 'human life'...Sounds pretty sweet to me. Holy shit, I'm indoctrinated!