Which will sell more Killzone Shadowfall or Titanfall (on XBOX ONE)?

[DM235]

Mmmfishtacos said:

DM235 said:
Titanfall, because almost every XBox One owner will buy it, while Shadowfall will have to compete against CoD and BF4.

And titafall wont compete againts COD and BF4? 

I'll go out a limb and say that it does. 

CoD and BF4 will be available in November - the same time as Shadowfall.  Titanfall will probably come out in March 2014, and I don't recall seeing any other FPS games releasing around that timeframe.  XBox One owners would have finished playing their launch games and they will be looking for something new.  Just like I see many PS4 owners picking up Second Son.