Ever notice the interesting parallels between the lead and closing authors of the Book of Mormom? Both were sons of prophets. Both lived in a time of wickedness and impending destruction. Both were righteous men who rejected the evil of their time and drew close to the Messiah/Savior and received divine revelation about the future. Nephi was not a full-time military man like Moroni, but did suit up in the clothing of a military leader, Laban, in his quest to get the plates, a quest paralleled by Moroni retrieving and protecting them until they were buried. Both men had to flee enemies after retrieving the plates, and spent the rest of their recorded lives adding to them and taking steps to preserve them for future generations. Nephi brings them across an ocean to the promised land, while Moroni presumably travels across a continent (in the Limited Geographical Model of the Book of Mormon, anyway) to bring them from Mesoamerica to New York State. Both had much to lament and with the loss or rejection of family and loved ones, were apparently lonely and somber. But both rejoiced in that which gives hope to all of us: our Savior, Jesus Christ, the promised Messiah.
The great editor and second-to-last writer in the Book of Mormon, Mormon, was also like Nephi in being named a leader in spite of his youth (Mormon the teenage warrior named to lead the final Nephite army (possibly because of his lineage). [Corrected an error, confusing Moroni for Mormon in the original post.]
Interesting parallels in a book filled with poetic structure, parallelism, symbolism, and literary power.