For those who care about silly shit like "best of" here's a list I compiled of games in 2005. At the very least it's a snapshot of the whole year.
PS2
-
Cold Winter
Devil May Cry 3
Digital Devil Saga 1/2
Dragon Warrior VIII
Fatal Frame III
Genji
God of War
Guitar Hero
Haunting ground
Magna Carta
Makai Kingdom
Metal Slug 4/5
Radiata Stories
Resident Evil 4
Romance of the Three Kingdoms X
Shadow of the Colossus
Shadowhearts 2 (I think, way early in the year)
Soul Calibur 3
Stella Deus
Suikoden Tactics
Trapt
We

Katamari
PSP
-
Ape Escape
Archer Maclean's Mercury
Frantix
Gripshift
Hot Shots
Infected
Kingdom of Paradise
Legend of Heroes
Lumines
Metal Gear Ac!d
PoPoLoCrois
Prince of Persia Revelations
Ridge Racer
Tokobot
THUG2 Remix
Twisted Metal
Untold Legends
Virtua Tennis
GBA
-
Final Fantasy 4
Fire Emblem
Rebelstar Tactical Command
Sigma Star Saga
Gamecube
-
Chaos Field
DDR: Mario Mix
Killer 7
Resident Evil 4
DS
-
Advance Wars: Dual Strike
Animal Crossing
Battles: Prince of Persia
Castlevania: Dawn of Sorrow
Lost in Blue
Lunar: Dragon Song
Mario Kart DS
Meteos
Nanostray
Nintendogs
Phoenix Wright
Shogun Empires
Trace Memory
Trauma Center: Under the Knife
Xbox
-
Call of Cthulhu: Dark Corners of the Earth
Dai Senryaku VII
Fable: Lost Chapters
Jade Empire
Mortal Kombat: Shaolin Monks
Ninja Gaiden Black
Oddworld: Stranger's Wrath
Phantom Dust
Psychonauts
Raze's Hell
Splinter Cell: Chaos Theory
Still Life
Stubbs the Zombie
The Warriors
Xbox 360
-
King Kong
Call of Duty 2
Everything Else
PC
-
Age of Empires 3
Battlefield 2
Call of Duty 2
Civilization 4
Dungeon Lords
FEAR
Guild Wars
Indigo Prophecy/Fahrenheit
The Movies
Quake 4