I have played Crusader Kings II for over 200 hours, and I still have not finished it with a single character.
I believe that if Obsidian were given a full 3 year development time for Knights of The Old Republic 2, it would have been the best Game of 2006, if not the 1st of decade of the 21st century (2000-2009).
Diablo and all its various clones, are terrible Role-Playing Games, although they are agreeable action games, and superb non-Dota personal strategy games.
Jade Empire was a shit game, no other way to put it. (From Baldur's Gate and KOTOR to this!?)
EA kills everything it touches, and because of this Mass Effect 2 ended up as a massive disappointment (I haven't played ME 3 yet, and I never plan to as ME 2 didn't really make me want to)
Fable: The Lost Chapters has some of the most potential for dicking around ever! (Evil property mogul anyone?)
I find the fact that not a single 3D anime fighting game is good, to be fucking disgraceful, come on Konami, Bandai whoever, you know that a well done DBZ/Bleach/Naruto fighter could rake in oodles of money. (Please take note that I don't like either Naruto or Bleach, I just believe that if translated properly they could make revolutionary fighting games)
What else can I say other than ...
"DAISHADEI! I AM MASTER ASIA"
EDIT:
The Elder Scrolls 4 was O.K, not that good a game, really un-immersive and had stupid design choices here and there (ATHLETICS), but it looks amazing when compared to TES 5, seriously Bethesda why did you drop the ball so hard, I mean I understand that a lot of Nords died so I have to fight their corpses, but you know Variety is a thing. Also the DB questline was simply unforgivably terrible. And why couldn't I play as a young dunmer?