The Wii has many good exclusives, like Super Mario Galaxy, Metroid Prime Corruption, Zelda Twilight Princess, Super Paper Mario, No More Heroes, Super Smash Bros Brawl, Zack & Wiki, etc.

The PS3 has many good exclusives, like God of War 3, Metal Gear Solid 4, Grand Theft Auto 4, Haze, Resistance, Uncharted, Jak & Daxter The Lost Frontier, Final Fantasy 13, Killzone 2, Ratchet & Clank Future, etc.

The Xbox 360 only has Halo 3, Project Gotham Racing 3, Dead Rising, and games that also appear either on the PS3 or the PC.

It is generally agreed upon that the PC has better controls for FPS and RTS than the console, and most contemporary PC games support the 360 controller.

Then why would one buy a 360 instead of a PC, except for the fact that it is cheaper?