I think the comparisons should be as follows:
Alan Wake vs. Heavy Rain
Gears of War 2 vs. Killzone 2
BioShock vs. Uncharted
Banjo-Kazooie vs. Ratchet & Clank
Ninja Gaiden II vs. Ninja Gaiden Sigma
Forza Motorsport 2 vs. Gran Turismo 5: Prologue
I thik Ninja Gaiden Sigma vs. Ninja Gaiden II would be a far more direct comparison since they are of the same series.
I also don't think Final Fantasy XIII can be used for the 360 since the game hasn't even been shown on 360 hardware since the port hasn't even started being developed yet.







