Damn, what a coincidence we have such similar posts in the same day. haha
Anyways, I agree with most of your choices. Only thing I would remove is Skyrim. Apart from the main quest, most of the side quests, including the factions, were piss poor quality. Oblivion's side quests puts every other TES game to shame, and Morrowind's main quest does the same. That's just my 2 cents though.
As for the others, Last of Us might actually be number one. :D But I would accept arguments that any other one of these could be #1.
Regardless, great post man. Keep it up!