Don's got it! The planing bottom boat has no rocker in the aft and center hull bottom. The location of the center of gravity in relation to the center of the planing area is important for proper planing. That is why the console is forward. As for deadrise, the boat with no deadrise requires less power to plane it. But, that is not the only consideration in most cases. As Don said, it will pound in choppy water. The more deadrise you have, the less it will pound, but the more power you will need. A prime example of this is the deep-V design power boats as designed by C. Raymond Hunt back in the 50s~60s.