I know we re not even halfways through the month but....
http://www.amazon.com/gp/bestsellers/2015-10/videogames/ref=zg_bsar_videogames_pg_1?ie=UTF8&pg=1#2
18 - PlayStation 4 500GB Console - Destiny: The Taken King Limited Edition Bundle
26 - PlayStation 4 500GB Console - The Last of Us Remastered Bundle
27 - PlayStation 4 500GB Limited Edition Star Wars Battlefront Console
41 - Xbox One 1TB Console - Halo 5: Guardians Limited Edition Bundle
63 - PlayStation 4 1TB Console - Call of Duty: Black Ops 3 Limited Edition Bundle
64 - PlayStation 4 500GB Uncharted: The Nathan Drake Collection Bundle
100 - Xbox One 1TB Console - Madden NFL 16 Bundle
So far it seems like the PS4 has a solid lead.