What i hate the most about the ending is how it doesn't (SPOILER)tell me anything about what the reapers actually are (except that they are under the control of that crucible-kid), where that crucible-kid comes from, who he is (I realize that the visual form he took was just based on something in shepard's mind, I don't actually think he is a little boy), if the reapers are dependent on the mass relays, if the civilizations can still communicate after the relays have been destroyed, if they manage to come up with their own relay technology, if anyone in the normal areas of the citadel survived, and DOZENS OF OTHER LEFT-OUT THINGS. The ending creates ten times more questions than it answers, and I haven't even started my rant on how old and overused the jesus christ allegory is. I think I'll save that for another time anyway.