I thought Pacman was the best game ever made. It was number one when it came out 26 and a half years ago and still seems to find its way onto everything from my 360 to my cellphone
plus I think it might have been cloned more than Tetris if thats possible. Seriously though my favorite game changes from month to month, right now I've been playing some Battlefield 2142 and a little bit of Sid Meires Railroads but if I was to pick one game that I used most of my spare time on this year, it would be Civ 4. I guess Civ 4 would be my pick for best game ever even though I've had more fun playing games such Karaoke Revolution Party, but the novelty of these types of games wear off very quickly.
Here are the #1 games for certain systems reviewed by the pros as of 10-29-06.......
P.C.= Half-life2
Xbox 360= The Elder Scrolls IV: Oblivion
PSP= Lumines
DS= Mario Kart DS
GBA= Super Mario World: Super Mario Advance 2
Xbox= Halo: Combat Evolved
PS2= Resident Evil 4
PS1= Tekken 3
Gamecube= Metroid Prime
N64= The Legend of Zelda: Ocarina of Time
SNES= Super Mario World
Dreamcast= Soul Calibur
Genesis= Sonic the Hedgehog
Sega CD= Lunar: Eternal Blue
I know I missed a few like the Atari Jag, Neo Geo, Colecovision, Intelivision, Atari2600 ect so feel free to add to the list.