We decided there would be one FE gift per family regardless of how many staterooms they have. Anything above and beyond a famly FE like individual gifts to each child was at your own descretion, but not required or expected, just "gravy".
One thing to note though is that some families are on the FE list, but do not have their own DIS Board name. For instance minnie meese is traveling with 2 other families and they are in their own staterooms. They way I am looking at it is a separate family gift should be given to 9510, 9514, and 9516 since they are separate famlies that happen to be traveling together. If I am wrong about that please let me know.
Thanks,
Jeff