I own the contour. I've used the gopro many times. They are both really good, but I think the contour has a few more options that I like more -the first being the goggle strap mount, and the 2nd being the slider bar for on/off.
Also, I feel like the contour has better focus than the gopro, and produces better colour. But that's just me.
While Contour's previous models have been crappy, the new Contour+ gives the GoPro a fair competition. For one, it doesn't give that ugly contrast the GoPros have, and a faster lens is always welcome. I'm excited to try it out!
i have an older contour, definitey prefer it to the gopro, better colors, and doesn't have the crazy fisheyed appearance that gopros do (something ive always hated). the only problem that i wish they had (with the old ones) was the ability to change the light settings without a computer