Is Catholicism the only intellectual (theologically) Christian branch?

Well, the Catholic Church DOES have the advantage. It has religious documents going back centuries in their archives, it has created the Bible as we know it, it have over a billion followers that contribute money into the church for Charity work, archival or historical restoration, and scientific advancement. On the other hand Protestant Churches use a corrupted version of the Bible, especially "doctored" by Martin Luther and other Reformists for their own needs, their close mindedness about anything outside their mutilated Bibles leaves little room for improvement in the various Protestant Church bodies for the advancement of Science, and finally, their lack of willingness to work together has resulted in a severe drop in their potential for Charity work.