PS1-Tekken 3(They NEED to put in on psn)

PS2-GTA:San Andreas

PS3-Red Dead Redemption(I only don't play it cause I love it so much)

PSP-FF7:Crisis Core

Wii-Super Smash Bros Brawl

GBA-Final Fantasy 4

You like Shadow Of the Colossus

you=EPIC FAIL j/k 

If excluding game collections;

_____________________________________________________

NES - Super Mario Bros. 3 (How original...)

Game Boy - Tetris

Sega Mega Drive - Sonic & Knuckles

SNES - Super Metroid (Also, to this day, my favorite video game in existence.)

Sony Playstation - Final Fantasy IX

Nintendo 64 - The Legend of Zelda: Ocarina of Time (Another really original choice.)

Sega Dreamcast - SoulCalibur

Game Boy Advance  - Mario & Luigi: Superstar Saga

PC - Warcraft III: Reign of Chaos

Playstation 2 - Shadow of the Colossus

Gamecube -  Metroid Prime

Xbox 360 - Bioshock

Playstation 3 - LittleBigPlanet

Wii - Super Mario Galaxy 2

____________________________________

If collections are included however, my favorite PC game would have to be The Orange Box, and the honor of my favorite Wii game would go to Metroid Prime Trilogy.

NES: Super Mario Bros. 2

Gen: Vectorman

GG: Sonic the Hedgehog

GB: Pokemon Red

Sat: Daytona USA

PS1: Streak: Hoverboard Racing

Xbox: Star Wars: Knights of the Old Republic

Xbox 360: Mass Effect 2

DS: Chrono Trigger

Gameboy color: pokemon gold

Gameboy Advance: Golden Sun and & Golden Sun: The Lost Age(love them equally)

Nintendo DS: Final Fantasy 4

PSP: Final Fantasy VII: Crisis Core

PS1: Final Fantasy VII

PS2: Final Fantasy XII

PS3: Uncharted 2

Gamecube: Tales of Symphonia

Nintendo WII: No More Heroes

Xbos 360: Mass Effect 2

NES: Super Mario Bros. 3

SNES: The Legend of Zelda: A Link to the Past

N64: The Legend of Zelda: Ocarina of Time

Gamecube: Resident Evil Remake

Wii: Metroid Prime 3

Gameboy: Spider-Man 3

Gameboy Color: Pokemon Red

Gameboy Color: Castlevania Circle of the Moon

DS: CastleVania: Dawn of Sorrow

SEGA GENESIS: Sonic the Hedgehog

SEGA Dreamcast: Sonic Adventure 2

PS1: Final Fantasy 9

PS2: Kingdom Hearts

PS3: Metal Gear Solid 4

PSP: Metal Gear Acid

Xbox: Ninja Gaiden

X360: Gears of War

NES - Super Mario Bros. 3

Sega Genesis - The Lion King (I'm not sure if this would still be my favorite if I played it today, but it was as a kid)

N64 - Zelda: OoT

GC - Pikmin

Wii - Super Mario Galaxy

PC - The Sims

For the older handhelds I don't remember the games as well so I'm just going with what I most remember playing.

GBC - Zelda: Link's Awakening DX (I think that is the right name?)

Game Gear - Primal Rage

GBA - Mario Kart (Don't remember the subtitle)

DS - GTA Chinatown Wars

NES: Super Mario Bros 3

SNES: A link to the past

n64: Majoras Mask

Gamecube: Wind Waker

Wii: (Kind of) Super Mario Galaxy 2

Gameboy: Pokemon Red

GBC/GBA: Pokemon Gold

Sega Genesis: Sonic

Sega Dreamcast: SoulCalibur

DS: Pokemon Heart gold

PS1: FF9

PS2: Shadow Of The Colossus

PS3: MGS4

PSP: God of War:COO

Xbox: Morrowind

Xbox360: Gears of War

NES:  River City Ransom
Gameboy: Tecmo Bowl
SNES: Legend of Zelda: A Link to the Past
Gameboy Advance: Metroid Fusion
Nintendo 64:  Goldeneye 007
GameCube:  Metrod Prime

Playstation: Final Fantasy VIII
Playstation 2: God of War III
PSP: God of War Chains of Olympus
Playstation 3: Heavy Rain

Xbox: Halo: CE/Black   (Its a Tie)
Xbox 360: Gears of War 2

PC: Mechwarrior 4

NES: Batman

SNES: Super Mario World

N64: Star Fox 64

Gamecube: Paper Mario: The Thousand Year Door.

Wii: Super Smash Bros. Brawl

Gameboy: Pokemon Yellow

• Gameboy Color: Pokemon Silver

Gameboy Advance: (And guess what kids!) Pokemon Saphire

DS: Elite Beat Agents

SEGA Dreamcast: Sonic Adventure

PS1: Final Fantasy 9

PS2: Kingdom Hearts II

PS3: Metal Gear Solid 4

PSP: Final Fantasy VII: Crisis Core

Xbox: Psychonauts

X360: Halo 3

Pc: Half-life 2

PS2--God of War

Xbox--Halo 2

Xbox 360--Halo 3 (soon to be Halo Reach)

PC--Rollercoaster Tycoon 2