Well, I don't know about best, but I can tell you my favorite from each console.
PS3 - BioShock and Unreal Tournament
PS2 - Black
PS1 - DOOM
N64 - Perfect Dark
GameCube - GoldenEye Rogue Agent
SNES - Mortal Kombat
Genesis - Sonic the Hedgehog
NES - Super Mario Bros. 1 & 2
Atari - Missile Command and Centipede
The best game i evered played is DDO(Dungeons & Dragons online)You have to fight monster do quest and much more.P.S. if anyone signs up for DDO add me.My name is Flipperman.i know its a wierd name.I am a level 3 paadalin and level 1 rogue
One of the only games that got me really addicted.
And you can play it practically forever.
You do need to learn to cope with the graphics.
And with getting hopelessly lost in its huge world.
Hmm I don't think it's the best, but it's one of the best and that is:
Conker's Bad Fur Day
It is an awesome funny game that I played when I was a child. I would recommend it to all game lovers with a sense of humor.
for every system I played
DS Assassin's Creed
Ps2 Metal Gear Solid 2-3
Xbox Prince of Persia
360 Fable 2
Ps1 Rising Zan
GBA LoZ Minish Cap
PS3 Soul Calibur 4
GC LoZ Twilight Princess
N64 LoZ Ocarina of Time
Sega Sonic The Hedgehog
NES Super Mario Bros./LoZ
SNES LoZ Link to the Past