Well in my humble opinion the whole rocker thing is a bit of a fad and an obvious marketing ploy. The only place where rocker has the advantage is in the trees and in deeper conditions. If you like spending your time carving up the mountain on groomers then don' t bother with a mid fat rockered ski, get a carving ski.
Now if you spend the majority of your time in the trees (east coast style) then I can vouch for the Jeronimo. Check out Moment's El Dorado and great ice coast ski.