There are so many games I absolutely love dating way back to the Sega Megadrive and the Sega Gamegear. But to spare you the endless list of top five games for each console I'll limit it to only a few

.
Nintendo Consoles [Limited to Wii, N64, Gamecube, Gameboy Advance]
-The legend of Zelda Ocarina of Time
-The legend of Zelda Majora's Mask
-Kingdom Hearts Chain of Memories
-Tales of Symphonia
-Sonic Adventure 1&2 (Got them both for Dreamcast as well, but it saves me a list)
Microsoft Consoles [Xbox, Xbox360]
-Halo
-Halo 2
-Halo 3
-Gears of War
-Devil May Cry 4
Sony Consoles [Playstation, Playstation 2, Playstation 3]
-Final Fantasy VII VIII IX X XII
-Zone of the Enders 1&2
-Dot Hack [The original 4 volumes, including also G.U's three volumes]
-Kingdom Hearts 1&2 [Including both Final Mix titles]
-Klonoa
The lists could go on and on forever, so many great games, so many memories!