Poll: Which fictional element would you spend your time and resources to mine?

If you were a CEO to a multibillion dollar mining corporation which of the following fictional elements would you focus on mining? Discuss your answer here: http://www.imdb.com/board/bd0000088/nest/223779290 Below is a guide to the fictional elements: http://en.wikipedia.org/wiki/List_of_fictional_elements,_materials,_isotopes_and_atomic_particles