Every *case* is an X-File but that can hardly be helped, and with as much as X-Files is the springboard, you have to be crazy to think Fringe and X-Files have the same feel. Strangely enough they are really completely different shows.
@jc790 in the realm of this, all things are ripoffs because entertainment at some point must be derivative, however we must rely in the complexity of characters to tell compelling stories now, as that is what makes a series like fringe work independent of the x-files
