Here's something to keep your mind off the numbers. Just say which game(this gen) you liked best from each genre. I will list my opinion for you.

FPS: Call of Duty 4 - easily one of the best games this generations. Even today I can play it and still not get bored. Too bad the seuqels couldn't maintain the same level of quality.

Runners up:

Halo Anniversary, Cod MW2, Halo 3, Killzone 2

Action adventure: God of War 3 - I was a bit dissapointed when I heard there was no MP. But as soon as I started to play it that didn't matter to me. Comes in my top 5 games of all time.

Runners up:

God of War collection, Batman Arham city, AC II

RPG: Mario and Luigi Bowsers Inside Story - one of the only RPG's I could actually enjoy (haven't played Skyrim yet)

Runners up:

Final Fantasy 13 

Platformer: New Super Mario bros - had a lot of fun with this game.

Runners up: 

Super Mario 64, Little Big Planet, Little Big Planet 2 

Racing: GT5 - the best racing game of all time no racing game this gen can come close (unless it's GT6).

Runners up:

NFS Hot pursuit, Burnout Revenge

TPS: Uncharted 3-not just the best TPS... the best game of all time (and yes Uncharted is a TPS)

Runners up:

GTA 4 (second best game this gen),  Gears of War 3, Uncharted 2

nice list

Action adventure: God of War III.

 FPS: Bioshock.

RPG: The Elder Scrolls IV: Oblivion. (Haven't played Skyrim, yet).

Platformer: LittleBigPlanet.

Racing sim: Forza Motorsport 4.

Racing arcade: PGR4.

Vehicle Combat: Twisted Metal: Black.

TPS: Gears of War 3.

Puzzle: Tetris.

Fighting: Mortal Kombat.

There's my list, with a few added categories :)

For this, I'm assuming we're only doing console games.

RPG - Lost Odyssey

Runner Up: Final Fantasy XIII, Demon's Souls, and Tales of Vesperia

Strategy - Valkryia Chronicles (I'm splitting hairs so that I can include VC and Lost Odyssey)

Runner Up: Shogun 2: Total War

Action/Adventure - Bayonetta

Runner Up: Metal Gear Solid 4: Guns of the Patriots, Assasin's Creed 2, and Heavenly Sword

FPS - Bioshock

Runner Up: Call of Duty: Modern Warfare 2 and Call of Duty 4: Modern Warfare

TPS - Uncharted 2: Among Thieves

Runner Up: Uncharted 3, Gears of War 2, and Dead Space

Fighting: BlazBlue: Calamity Trigger

Runner Up: Dead or Alive 4 and

Racing - Gran Turismo 5

Runner Up: Motorstorm and Burnout Paradise

Music/Rhythm - Rock Band 2

Runner Up: Elite Beat Agents

Puzzle - Catherine

Runner Up: Professor Layton and the Curious Village

Platformer - Super Mario Galaxy

I could probably mix some things around, but this is just off the top of my head.

FPS- Bad Company 1
RPG- Dragon Age Origins
RTS- Starcraft 2
Racing- GT5
TPS- Gears of War 1
Action- God of War 3

Stealth or just pure awesome category - Metal gear solid 4

Hmm JRPG have not been great this gen, last gen at least had FFX.

Won't list any games I've got in the past two months because I feel like I rate games way higher when I first get them than I would a few months later looking back at the experience, so basically no skyrim, at least for now =(

FPS-Halo 3

TPS-Vanquish

Action/Adventure-Bayonetta

Platformer-Braid

Stratagy- valkyria chronicles

Racing- Dirt 2

Fighting- Soul Calibur 4

Music- Elite Beat Agents

Puzzle- Phoenix Wright Ace Attorney

RPG- The World Ends With You

Action/Adventure: Twilight Princess (not far enough into Skyward Sword to say yet)

Runners up: Assassin's Creed 1 and 2

Racing: Need for Speed: Hot Pursuit

Runners Up: Mario Kart DS, Forza 3

RPG: Skyrim

First Person Shooter: Halo Reach

Runners Up: Call of Duty: Modern Warfare, Halo 3, Borderlands

Third Person Shooter: Mass Effect 2 (or would that go in RPG or Action Adventure)

Fighting: Super Smash Bros. Brawl

Platformer: Super Mario Galaxy

Runners Up: Little Big Planet

Sports: NHL 12

MMO: World of Warcraft

Puzzle: Portal 2

Minecraft: Minecraft (one of the best games this generation but kind of category-less)

Just from what I've played.

Action/adventure: This is a toughy, but I will go with Batman:AC.
Runners up:AC2, AC:Brotherhood, and Enslaved.

TPS: Gears of War 3
Runners up: Dead Space, Gears of War 2, and GTA4

RPG: Mass Effect 2
Runners up: Mass Effect 1, Fable 2, and Dues Ex.

FPS: Halo: Reach
Runners up: Call of Duty 4, Left 4 Dead 2, and Halo 3

Platformer: Splosion Man
Runners up: ilomilo, Super Meat Boy, Limbo

RTS: Halo Wars
Runners up: None. Haven't played any other RTS this gen.

Racing: Forza 3
Runners up: Burnout:Paradise, Hydro Thunder, and Need for Speed: Shift

Motion controls: Kinect Sports
Runners up: Dance Central, Rise of Nightmares, and Child of Eden.

Music: Guitar Hero 3
Runners up: Dance Central, and Rockband: Beatles

FPS - Call of Duty 4 and Star Wars Battlefront

TPS - Uncharted 2

Platformer - Crash Bandicoot 3: Warped

RPG - Fallout 3 and Pokemon Red/Blue

Racing Sim - Gran Turismo 1-4 (I don't like GT5 nearly as much, has way too many flaws and things I hate)

Racing Arcade - NFS Hot Pursuit 2 (PS2) and Ridge Racer

Action/Adventure - Driver and GTA Vice City/San Andreas

Sports - EA Sports NHL games from 2000-2005