No doubt Halo Wars will sell more. R2 shows us that FPS is not a killer genre on the PS3 so I have modest expectations for KZ2. I predict it selling less than R2 due to the slow season release.
Halo Wars has a huge brand name, A million Halo fans are still playing the game daily and it tops the on-line charts on Live (beating much fresher games like CoD4, WaW and GoW).
Also remember than the Sony install base in the FPS countries (exclude Japan and Germany) is strongly lagging behind the 360 (about 10M difference). So the attach rate of KZ2 will have to be 40% higher than Halo Wars to just keep pace with it.
Unless the Halo Ware review will be less than 8.5 Halo Wars will outsell KZ2 by a wide margin.
Prediction made on 11/1/2008:
Q4 2008: 27M xbox LTD, 20M PS3 LTD . 2009 sales: 11M xbox, 9M PS3
