Go with the Razz. It has this nifty swivel bottom and it has good range but quite a small display so the keyboard is angled so it feels like the classic hand-held video game device. The Intensity has an ugly back and that's not something you want to show off to all of your friends. As for the Cosmos, I have not experienced what that one is like.
Hope this helps in your decision!
Hope this helps in your decision!