My last two boards have been the Capita DOA and TFA. They're both a type of camrock, and I like the shape a lot. They're good for jumps, bombing groomers, halfpipe (camber is excellent for carving and pop).
Flat/lifted contact points make the boards almost as catch free as my old Indoor Surival, which is a flat/rocker board, but they are definitely more springy and stable.
Pow float is a lot of marketing, imo. Unless you NEED a centered stance WHILE you're riding pow, you can set back your bindings, and any board will float better.
My jib skills are lacking, so in the park I tend to go for the biggest jumps I can handle, or the halfpipe, camber is best for this.
The only other time i'd want a rocker board is tight in the glades, because I tend to initiate turns by sort of nose-butter-pivoting into them, and a rocker board's tail will naturally move out of the way faster for turns. I think the length of the board (shorter) is more important for riding in tight vegetation.
DC also makes some camrock boards, and I think more companies will be producing boards with a mellowed camber soon.