1. MKWii

2. WiiFit

3. GTAIV

1. Fallout 3
2. Lost Odyssey
3. Ninja Gaiden 2

1) Gears of War 2
2) Civilization Revolution
3) GTA4

1. Metal Gear Solid 4
2. Dead Space
3. Gears of War 2

Handheld - FFVII: Crisis Core

And old game, well, FFVII

1) MGS4
2) Resistance 2
3) GTA4

Haven't purchased LBP yet so can't comment on that one..

Gears of War 2 is my no.1 for 2008, despite the matchamking problems its just pure genius, Horde is the most fun ive had for a long time.
Mario Kart Wii is also good fun, so that would be no.2 and my no.3 goes to GTA4 which is another super fun game released this year!

I only have a Wii but I nominate...

1. Super Smash Bros. Brawl
2. Mario Kart Wii
3. Tales of Symphonia: Dawn of the New World

This year I havent purchased many games from 08, Ive been mostly going through the backlog. From what I have played, this is what I think:

1. Fable 2 - loved the original, sequel did not disappoint.
2. Braid - dont know what your policy for XBLA games is, but Braid is great.
3. Lost Odyssey - filled a huge RPG void at the beginning of the year

Award X: The Orange Box, specifically Portal - words cant describe the awesome

handhelds: dont own any.

PS3
Valkyria Chronicles
Little Big Planet
Metal Gear Solid

XBOX360
Fallout 3
Fable 2
Gears of War 2

Wii
SSB Brawl
Fire emblem Radiant Dawn
Mario Kart

edited to fix the name

WOTLK is Wrath of the Lich King, WoW's new expansion.