In all honesty, the endings of ME3 was abysmal.. It was like watching the ending of Battlestar Galactica, watching all your investments into the characters, the universe, everything, just get looked at with a funny look, laughed at, shrugged off and then stomped on..
All the way till the rush towards the beam, i was like "

!!!" while thinking "DIE REAPERS DIE!"..
Then the ending came along, and i was like "well, ok, i can still kill the reapers, but i just lost Garrus and Liara, and now Anderson, oh well, i still have Joker!"
But then the kid, oh god the kid.. that was when the feeling of "WTF" came along, and lastly but not least, the three choises. My end wasn't based on how good i was, how horrible i was, how caring i was or any of my actions all the way through the game, but based on what i wanted in that moment.
And all i wanted was to save the galaxy, not by watching EDI getting killed, not by picking the Illusive Mans way of being an evil douche, so i picked the symbiosis ending..
Nuff said, ME3 is deleted now