Bioshock Infinite, just for the sheer scope. Capped by the Troy Baker/Courtnee Draper “Will the Circle be Unbroken” jam session during the credits. Just total awesomeness all around.
But, the ending that got the biggest emotional response from me was The Last Of Us. Just a whirlwind of emotion, mainly negative towards Joel. But the voice acting and expressions of the characters was amazing, and said a lot without dialogue. For example, when Ellie asks Joel if he’s telling the truth and he says yes, Ellie seemed to know without saying so that Joel was lying, but went along with it anyway because she knew he would never tell her. Her response of “OK” was more to say “OK, so that’s the way it’s going to be.” Very deep for a game ending.