Agent Smith = PC: He's a machine that hates interacting with human users. He's almost unstoppable, unless confronted by an avatar of choice (the "bug" in the Matrix, according to The Architect, AKA Steve Ballmer). He wants everyone to look and act and work just like him, effectively converting the entire machine landscape into one standardized techno-clone army. He forcibly upgrades his old counterparts to become extensions of himself (XP to Vista?). And the only way to defeat him is to surrender to him. Seriously, could Agent Smith be any more of a Windows PC? The dude should have the Microsoft logo stamped on his lapel.
Darth Vader = Mac OS X: When you boil the Empire down to its core philosophy, it's this: Order at any cost. Hate to break it to you Mac fans, but that's Steve Jobs' mantra as well. He'll build you the slickest personal computer in the world, so long as you're willing to give up any control over the inner workings of your tech. Besides, just look at the stormtroopers–they're walking iPods. Or take the Death Star: Clean lines, efficient design, impressive features–you could almost hear Jobs introducing it at some MacWorld expo in a galaxy far, far away: "One more thing…it blows up planets." The downside of this orderly, simplistic scheme is a that any R2 unit with a USB link can access your ultimate weapon and shut down all the garbage mashers on the detention level, any decrepit old Jedi can disable your tractor beam generators thanks to an intuitive interface, and your security-through-obscurity principles mean any consular ship or Bothan spy can intercept plans for this battlestation, exposing the inadequacy of your thermal exhaust systems (dude, you need more case fans). That is why you fail.
