The difference - Goldberg intended to poke fun when merited.
Update (4/17/2009): Steven I. Weiss on the Huffington Post agrees with us...about the value of the list and we commented now on his post:
yes the newsweek exercise was silly, the result was demeaning to many hard working and sincere pulpit rabbis and academic theologians in the American Jewish community who are not self-promoting celebrities. it would have been totally okay if the list were the "50 top celebrity rabbis" - and i mean this truly - there is nothing wrong with being a celebrity rabbi. just be clear that contrary to the superficial newsweek mentality, celebrity is not the same thing as influence in our society.