CONGRATULATIONS, DARREN ARONOVSKY AND RUSSELL CROWE: After its fourteen years atop the charts, Jacob has been displaced by Noah and Liam as the most popular baby boy's name. Sophia, Emma, and Olivia top the girls' chart for 2013.
Big risers include Jayceon (and Jayse/Jayce), Milan, Atlas, and Duke for the boys; Daleyza, Marjorie, Lennon, Jurnee, and Everlee/Everleigh for girls. Also rising: Arya and boys' names starting with Bran.
[Added: Vox on the rise of Arya and Khaleesi, but there were only seventeen Katnisses.]
Among the top fallers are a lot of irregularly-spelled boys' names ending in schwa-n (Austen, Masen, Trevon, Jaidyn, etc), while z's are out-of-favor for girls (Litzy, Jazzlyn, Maritza, Izabelle). Also Geraldine.