Video camera

Hi! We are going to the World in June, and I am trying to decide if I should get a new video camera. I have used a small waterproof Kodak video camera in the past along with a nice JVC camcorder. I have heard good things about gopro, but I do not know a lot about those. So, what kind of camera do you use/recommend?

We just use the cameras on our phones anymore. They take full HD video so it works out well. Less to carry around which is really nice.