John. Besides just his incredible character in the Bible, really his writing is amazing. From a fisherman that was disdained as uneducated by the elite of his time to being made by Jesus into what is easily the most influential writer of all of history for his authorship of Gospel of John, the three Letters of John, and of course the Book of Revelation. Even religion aside John wrote the most influential books ever written in all human history, no one in all history comes close to John's influence on literature. Additionally John's writings serve as the basis for the 3 primary doctrines that all Christians must believe; the Apostle's Creed, the trinity doctrine, and the veracity of the Bible.