These are my personal Game of the Year Awards. These are my opinions, so don't complain about my choices.
Best Voice Acting
Assassin's Creed: Revelations (XBox360/PS3)
Batman: Arkham City (XBox360/PS3/PC)
Catherine (XBox360/PS3)
Portal 2 (XBox360/PS3/PC)
Uncharted 3: Drake's Deception (PS3)
Winner: Portal 2 (XBox360/PS3/PC)
Best Downloadable Game
Arcana Heart 3 (PSN)
Bastion (XBLA/PC)
Ms. 'Splosion Man (XBLA)
Outland (XBLA/PSN)
Trine 2(XBLA/PSN/PC)
Winner: Bastion (XBox360/PC)
Best Re-Release
Ico and Shadow of the Colossus Collection (PS3)
The Legend of Zelda: Ocarina of Time 3D (3DS)
Mass Effect 2 (PS3)
Shin Megami Tensei: Devil Survivor Overclocked (3DS)
Tactics Ogre: Let Us Cling Together (PSP)
Winner: Shin Megami Tensei: Devil Survivor Overclocked (3DS)
Best Sequel
Atelier Totori: The Adventurer of Arland (PS3)
Disgaea 4: A Promise Unforgotten (PS3)
The King of Fighters XIII (XBox360/PS3)
Mortal Kombat (XBox360/PS3)
Portal 2 (XBox360/PS3/PC)
Winner: Atelier Totori: The Adventurer of Arland (PS3)
Best New IP
Bastion (XBLA)
Catherine (XBox360/PS3)
Ghost Trick: Phantom Detective (DS)
Minecraft (PC)
Radiant Historia (DS)
Winner: Catherine (XBox360/PS3)
Best Party Game
Dance Central 2 (XBox360 Kinect)
Just Dance 3 (XBox360 Kinect/Wii)
Kirby Returns to Dreamland (Wii)
LittleBigPlanet 2 (PS3)
Mortal Kombat (XBox360/PS3)
Winner: Mortal Kombat (XBox360/PS3)
Best Online Game
Assassin's Creed: Revelations (XBox360/PS3)
Battlefield 3 (XBox360/PS3/PC)
Dark Souls (XBox360/PS3)
Killzone 3 (PS3)
Uncharted 3: Drake's Deception (PS3)
Winner: Battlefield 3 (XBox360/PS3/PC)
Best Boss Battles
Dark Souls (XBox360/PS3)
The Legend of Heroes: Trails in the Sky (PSP)
The Legend of Zelda: Skyward Sword (Wii)
Pokemon Black/White (DS)
Sonic Generations (XBox360/PS3/PC)
Winner: Dark Souls (Xbox360/PS3)
Best Story
Catherine (XBox360/PS3)
Disgaea 4: A Promise Unforgotten (PS3)
The Legend of Zelda: Skyward Sword (Wii)
Radiant Historia (DS)
Uncharted 3: Drake's Deception (PS3)
Winner: Catherine (XBox360/PS3)
Best Sound Design
Battlefield 3 (XBox360/PS3/PC)
Dark Souls (XBox360/PS3)
Dead Space 2 (XBox360/PS3/PC)
Killzone 3 (PS3)
Mortal Kombat (XBox360/PS3)
Winner: Dead Space 2 (XBox360/PS3/PC)
Best Original Score
Atelier Totori: The Adventurer of Arland (PS3)
Dark Souls (XBox360/PS3)
The Legend of Zelda: Skyward Sword (Wii)
Radiant Historia (DS)
Sonic Generations (XBox360/PS3/PC)
Winner: Sonic Generations (XBox360/PS3/PC)
Best Graphics
Crysis 2 (XBox360/PS3/PC)
Gears of War 3 (XBox360)
Killzone 3 (PS3)
Uncharted 3: Drake's Deception (PS3)
The Witcher 2: Assassins of Kings (PC)
Winner: Uncharted 3: Drake's Deception (PS3)
Best Sports Game
FIFA Soccer 12 (XBox360/PS3)
Fight Night Champion (XBox360/PS3)
MLB 11: The Show (PS3)
NBA 2K12 (XBox360/PS3)
NHL 12 (XBox360/PS3)
Winner: FIFA Soccer 12 (XBox360/PS3)
Best Strategy Game
Disgaea 4: A Promise Unforgotten (PS3)
Kirby: Mass Attack (DS)
Shin Megami Tensei: Devil Survivor Overclocked (3DS)
Shogun 2: Total War (PC)
Tactics Ogre: Let Us Cling Together (PSP)
Winner: Disgaea 4: A Promise Unforgotten (PS3)
Best Puzzle Game
Catherine (XBox360/PS3)
Ghost Trick: Phantom Detective (DS)
Portal 2 (XBox360/PS3/PC)
Professor Layton and the Last Specter (DS)
Stacking (XBLA/PSN)
Winner: Catherine (XBox360/PS3)
Best Racing Game
DiRT 3 (XBox360/PS3/PC)
Forza Motorsport4 (XBox360)
Mario Kart 7 (3DS)
MotorStorm: Apocalypse (PS3)
Shift 2: Unleashed (XBox360/PS3)
Winner: Forza Motorsport 4 (XBox360)
Best Rhythm Game
Child of Eden (XBox360/PS3)
Dance Central 2 (XBox360 Kinect)
Just Dance 3 (XBox360 Kinect/Wii)
Patapon 3 (PSP)
Rocksmith (Box360/PS3)
Winner: Dance Central 2 (XBox360 Kinect)
Best Fighting Game
Dead or Alive: Dimensions (3DS)
Dissidia 012: Final Fantasy (PSP)
The King of Fighters XIII (XBox360/PS3)
Mortal Kombat (XBox360/PS3)
Ultimate Marvel vs Capcom 3 (XBox360/PS3)
Winner: The King of Fighters XIII (XBox360/PS3)
Best Platformer
Kirby Returns to Dreamland (Wii)
LittleBigPlanet 2 (PS3)
Rayman Origins (XBox360/PS3/Wii)
Sonic Generations (XBox360/PS3/PC)
Super Mario 3D Land (3DS)
Winner: Sonic Generations (XBox360/PS3/PC)
Best Action Game
Assassin's Creed: Revelations (XBox360/PS3)
Batman: Arkham City (XBox360/PS3/PC)
InFamous 2 (PS3)
The Legend of Zelda: Skyward Sword (Wii)
Uncharted 3: Drake's Deception (PS3)
Winner: The Legend of Zelda: Skyward Sword (Wii)
Best Role-Playing Game
Dark Souls (XBox360/PS3)
The Elder Scrolls V: Skyrim (XBox360/PS3/PC)
Pokemon Black/White (DS)
Radiant Historia (DS)
The Witcher 2: Assassins of Kings (PC)
Winner: Dark Souls (Xbox360/PS3)
Best Shooter
Call of Duty: Modern Warfare 3 (XBox360/PS3/Wii/PC)
Crysis 2 (XBox360/PS3/PC)
Gears of War 3 (XBox360)
Killzone 3 (PS3)
Resistance 3 (PS3)
Winner: Killzone 3 (PS3)
Best Nintendo 3DS Game
Dead or Alive: Dimensions
The Legend of Zelda: Ocarina of Time 3D
Mario Kart 7
Shin Megami Tensei: Devil Survivor Overclocked
Super Mario 3D Land
Winner: Super Mario 3D Land
Best PSP Game
BlazBlue: Continuum Shift II
Dissidia 012: Final Fantasy
The Legend of Heroes: Trails in the Sky
Patapon 3
Tactics Ogre: Let Us Cling Together
Winner: Dissidia 012: Final Fantasy
Best Nintendo DS Game
Ghost Trick: Phantom Detective
Okamiden
Pokemon Black/White
Professor Layton and the Last Specter
Radiant Historia
Winner: Pokemon Black/White
Best PC Game
Batman: Arkham City
The Elder Scrolls V: Skyrim
Minecraft
Portal 2
The Witcher 2: Assassins of Kings
Winner: The Elder Scrolls V: Skyrim
Best Wii Game
Call of Duty: Modern Warfare 3
Kirby Returns to Dreamland
The Legend of Zelda: Skyward Sword
Rayman Origins
Tiger Woods PGA Tour 12: The Masters
Winner: The Legend of Zelda: Skyward Sword
Best PlayStation 3 Game
Batman: Arkham City
Dark Souls
Disgaea 4: A Promise Unforgotten
Killzone 3
Uncharted 3: Drake's Deception
Winner: Batman: Arkham City
Best XBox360 Game
Batman: Arkham City
Catherine
Dark Souls
The Elder Scrolls V: Skyrim
Sonic Generations
Winner: Dark Souls
Game of the Year
Batman: Arkham City (XBox360/PS3/PC)
Dark Souls (XBox360/PS3)
Disgaea 4: A Promise Unforgotten (PS3)
The Elder Scrolls V: Skyrim (XBox360/PS3/PC)
The Legend of Zelda: Skyward Sword (Wii)
Winner: Dark Souls (XBox360/PS3)