Xbox:

1) Fable
2) Halo: Combat Evolved
3) Splinter Cell: Chaos Theory
4) Project Gotham Racing 2
5) Forza Motorsport 

Xbox 360:
1) Gears of War 
2) Alan Wake
3) Mass Effect
4) Halo: Reach
5) Forza Motorsport 3

PS1:

1) Gran Turismo
2) Spyro the Dragon
3) Crash Bandicoot 3
4) Wipeout XL
5) Tomb Raider 2

PS2:
1) God of War II
2) God of War 
3) Jak II
4) Ratchet & Clank 
5) Kingdom Hearts

PS3:
1) God of War III
2) LittleBigPlanet 2
3) Killzone 3
4) Resistance: Fall of Man 
5) Gran Turismo 5

PSP:
1) God of War: Ghost of Sparta
2) God of War: Chains of Olympus
3) Wipeout Pure
4) Resistance: Retribution
5) Patapon

PS3

Folklore

Valkyria chronicles

Demon souls

Infamous 

Uncharted

Decided to limit my platforms to 2 per company, and my games per platform to 5:

Microsoft:

Xbox:

Xbox 360:

Sony:

PlayStation 2:

PlayStation 3:

Nintendo:

N64:

GameCube:

And that's pretty much it, anything pre-dating Xbox/PlayStation 2/Gamecube i don't feel like posting (Except for the N64 obviously)

Yes, but it did its job well- it got many of the SMS userbase to switch over to the Genesis.

I'm just going to vote for the consoles I own/owned, as I don't think I can comment on what defined a console I didn't own.

NES

1. Super Mario Bros

2. The Legend of Zelda

3. Duck Hunt

4. Metroid

5. Mike Tyson's Punch Out

Gameboy

1. Tetris

2. Pokemon Blue/Green/Red

3. Super Mario Land

4. The Legend of Zelda Link's Awakening

5. Super Mario Land 3 Wario Land

Megadrive (or Genesis)

1. Sonic the Hedgehog

2. Ecco the Dolphin

3. Streets of Rage

4. Mortal Kombat

5. Golden Axe

SNES

1. Super Mario World

2. Street Fighter II The World Warrior

3. The Legend of Zelda A Link to the Past

4. Super Metroid

5. Donkey Kong Country

PS1

1. Gran Turismo

2. Metal Gear Solid

3. Crash Bandicoot

4. Tomb Raider

5. Final Fantasy VII

N64

1. Super Mario 64

2. The Legend of Zelda Ocarina of Time

3. Goldeneye 007

4. Mario Kart 64

5. Perfect Dark

GBA

1. Pokemon Ruby/Sapphire

2. Advance Wars

3. Metroid Fusion

4. Golden Sun

5. Mario Kart Super Circuit

PS2

1. Grand Theft Auto III

2. Gran Turismo 3

3. Metal Gear Solid 2 Sons of Liberty

4. Pro Evolution Soccer

5. Grand Theft Auto San Andreas

Gamecube

1. Metroid Prime

2. The Legend of Zelda Wind Waker

3. Resident Evil 4

4. Star Wars Rogue Squadron II

5. Super Smash Bros Melee

DS

1. Brain Age Train Your Brain in Minutes a Day

2. Nintendogs

3. Professor Layton and the Curious Village

4. New Super Mario Bros

5. Advance Wars Duel Strike

PS3

1. Uncharted 2 Among Thieves

2. LittleBigPlanet

3. Heavy Rain

4. Metal Gear Solid 4 Guns of the Patriots

5. God of War 3

Wii

1. Wii Sports

2. Wii Fit

3. Mario Kart Wii

4. Super Mario Galaxy

5. Super Smash Bros Brawl

DS

#1__Professor Layton & The Unwound Future

#2__Picross3D

#3__NintenDogs

#4__New Super Mario Bros.

#5__Pokemon Diamond/Pearl

PlayStation

#1__Resident Evil 2

#2__Resident Evil 3 Nemesis

#3__Dino Crisis

#4__Resident Evil

#5__Metal Gear Solid

PlayStation 2

#1__Resident Evil Code Veronica

#2__Metal Gear Solid 2 Sons Of Liberty

#3__Resident Evil OutBreak

#4__Metal Gear Solid 3 Snake Eater

#5__God Of War 2

PlayStation 3(So Far)

#1__LittleBigPlanet

#2__Heavy Rain

#3__Buzz Quiz T.V

#4__DragonBall Raging Blast

#5__Resident Evil 5

N64

#1__Pokemon Stadium 2

#2__Paper Mario

#3__Donkey Kong 64

#4__Super Mario 64

#5__Mario Party 3

GameCube

#1__Pikmin 2

#2__Animal Crossing

#3__Luigi's Mansion

#4__Pikmin

#5__Resident Evil 4

Wii(So Far)

#1__Wii Fit Plus

#2__Mario Kart Wii

#3__Resident Evil The DarkSide Chronicals

#4__Wii Sports Resort

#5__Animal Crossing City Folk

PS1:
1) Wipeout XL
2) Tomb Raider 2
3) Spyro the Dragon
4) Rayman
5) Crash Bandicoot 3
PS2:
1) God of War II
2) God of War
3) Jak and Daxter: the Precursor Legacy
4) Okami
5) Ratchet & Clank
PS3:
1) God of War III
2) LittleBigPlanet 2
3) Bioshock
4) Flower
5) The Elder Scrolls IV: Oblivion
PSP:
1) God of War: Ghost of Sparta
2) God of War: Chains of Olympus
3) LittleBigPlanet
4) Wipeout Pure
5) Daxter