I would say gopro hd2 simply more advanced, don't think about video quality, coz always the out put depends on the editing and rendering. Then What shud guide us? The ease of use, mounts , recording options, durability and for all these reason I must say gopro2 has an advantage over drift and contour The option of 60 fps for 1080p, the option of 170 fov for 1080 p the remote to control, iPhone or pc to control upto five units at a time, deep under water possibility,live upload, all these puts go pro2 miles ahead of the others now. the following threads I made some time back before gopro2 came out http://www.ohioriders.net/showthread.php?t=84450 http://www.ohioriders.net/showthread.php?t=85079