Whats your favorite games for every system you have ever had?

Atari - Pitfall
NES - TecmoBowl, Metroid,Bionic Commando
SNES - Super TecmoBowl, Street Fighter Turbo
PS1 - Metal Gear Solid, Resident Evil 1&2
Dreamcast - NFL2k, Rogue Spear
PS2 - Madden, RE4, Gran Turismo, GTA series
Xbox - Knights of the Old Republic 1&2, Halo
Xbox360 - Dead Rising, Bioshock
PC - Spacecraft, Warcraft (not WoW), Elder Scrolls series