I haven't ridden the Watson Dose, but I love my Watson Classic. Even though they are all different shapes, I think if you like one Watson, you'll like another Watson. Might not be the same case for everyone, but I feel at home being on any board with Watsons name on it. So I think the Dose would be an awesome choice.
I also jumped on a parks camber air core board right when they came out. I rode it a few times and gave it an honest shot, but ended up selling it after about a month and going right back to my Watson. It was a good board but just too different. That being said, the camber boards have changed quite a bit since then, so the best advice would really be to try to get your hands on one and take it for a spin. Camber is something you either love or you hate.