Cableferret

I've always loved Mace Windu telling someone "your chances come in two sizes: slim and fat" in an old Star Wars Novell called Shatterpoint.

My favorite system message is GRUB's "bailing out, you're on your own. Good luck"

What do you mean, "your own country with no fireworks?" Listen, buddy, the whole world celebrates the Fourth of July, when Jesus descended from Heaven to bring freedom l the idea of Freedom and the Constitution to our founding fathers!

The original Deus Ex. The storyline, the way the game world reacted to your actions and made it feel like your actions were relevant to the world around you instead of just being a static place where stuff happened to you...