So how much does releasing a console first in a generation relate to sales?

[Chark]

KeptoKnight said:

These software sales are neck to neck which is interesting:

Xbox 360 Call of Duty: Modern Warfare 3 -- 13.72
Call of Duty: Modern Warfare 2 ----------------13.25
Call of Duty: Black Ops---------------------------  12.72

PS3 Call of Duty: Modern Warfare 3----------- 11.51
Call of Duty: Modern Warfare 2 ----------------11.26
Call of Duty: Black Ops---------------------------- 9.85

EDIT: I wonder what are the total software sales to date between both of them.

You can view that on this site. Use the GameDB tab then click on the platform of inquiry, scroll down to the bottom and they will have a software total. I've seen a better way but I don't know it off hand.