I have most mounts for the GoPro. I've used the roll bar mount the least as is gets in the way. I've used the suction mount the most as it is so versitile. Using an external mic can also have an impact on where the camera is mounted. I don't think there is a definitive answer, just what works for you. its pretty easy to work out what is being used in these videos
http://youtu.be/IhsH-3zUPCghttp://youtu.be/zdLNr_iV4J8
