If you played video games growing up, or play them now, you might want to check out this fantastic infographic detailing a family tree of video game controllers.
It's interesting to see how the dial-based controllers of the early days evolved into joysticks, and that these then fell from favor until the N64 had that little, but rarely-used joystick on the centre hull. It also seems like controllers from way back when called for more asymmetrical hand positioning.
I also feel that Sony has really nailed it with the PS3 controller. All the buttons are perfectly placed, and it just feels right in your hands.
For more great video game information, check out VideoGameDesignSchools.org.
What's your favorite video game controller?