generally, boards with a continuous rocker are the boards that are ranked best for beginners to intermediate riders simply because the pop is "more consistent and predictable" than 3 stage rockers. But more importantly and in the long run, rocker type is more of a statement and reflection of style than it is for skill level.
Recoil- 3 stage rocker, abrupt/bucking style of pop, mellow speed
Response- Continuous rocker, predictable/less abrupt style of pop, faster speed on edge
The new Reflex- Progressive 3 stage rocker (Mellower 3-stage) that will provide a riding and pop style between the two other boards, a hybrid of sorts...