I have to disagree with the first three posters on the worst-looking console. I'm very biased when it comes to the Colecovision; I used to be obsessed with it as a kid and wanted one very badly. I thought it looked cool--still do--and even had a Colecovision ad taped on my bedroom wall.

Sorry Kid Ice, I freakin' love the original Intellivision design, I love the gold and woodgrain and numerical keypads. Love the Jaguar as well, I love it because of its unusual shape/design and black and red color scheme. It especially looks cool (and strange) with the CD attachment on top and the wicked boss keypad gamepad controllers on the side.

Other designs I love are the original Famicom (I didn't get to see one till years later), the red Sharp Twin Famicom, the Bally Astrocade, Coleco Telstar Arcade (who doesn't love triangles?), the Mountain Dew edition original Xbox, and of course the original heavy sixer Atari VCS.

The only butt ugly one I can't stand is the original American purple and gray SNES, even uglier when the gray yellowed over time. The Japanese Super Famicom looked infinitely cooler.

Didn't I answer this already a while back? Oh well.