NES - Guardian Legend, half the boards were like a space legend of zelda, the other a shot em up. Both halves weren't perfect, but good enough to make a classic. http://en.wikipedia.org/wiki/The_Guardian_Legend

SNES - Street Fighter 2 series. Mindless hours of fun poured into this motherfucker...on of my favorite series of all time. Can't wait for 5.

Genesis - Fucking forgot Coach K. Godlike.

Playstation 1 - Tekken 2. Talk about bang for the buck, all the characters, endings, side games..etc. Truly next gen 3d shit. Gran Turismo a close second; racing perfection. I can't imagine the hours I spent on these motherfuckers.

n64 - ALL of AKI's wrestling game, the zenith being WCW/NWO revenge. Nothing like being drunk/high talking shit and fucking your friends up. Goldeneye a close second for the same reasons.

Playstation 2 - Socom 2. The swan song of a real shooter before everything became Halo like halo (death to regenerating health/shields)

Xbox 1 - Crimson Skies. One of the best flying games ive played(and unfortunately to see how the genre has fallen, one of the last), I was even in the top 100 scoreboard for a bit.

Gamecube - F-Zero. Gorgeous and hard as fuck. The epitome of furistic racing games, even the soundtrack was dope.

PS3 - Last Of Us. What a great way to end this generation

Xbox 360 - COD Modern Warfare 2. It may be diminishing returns, but the series is still crack in video game form.