at OP: dont know how DI story is more complex than GOW. DI story is simple: Lucy (short for lucifer) has taken your fiance to hell and you follow him through the 9 nine circles of hell to get her back and by doing such, purify your sins and the ones of your fiance.
GOW has centred around the battle and history between Greek Gods and Titans, families, prophets and demons and war. It covers far more myths and legends than DI does. By all means, I am not saying DI has a bad story (I have read the book and bought the DI anime on Blu Ray), I am just saying the GOW story is more in depth and complex than the DI game.
What the reviewers have done marking the game down, I can somewhat understand, but I do think they have been harsh with too much comparisson to GOW series.
The problem is, DI took what GOW built and didn't do much to it and then Sony just released enough material on GOW3 to slap DI back to earth again and prove that DI has nothing on GOW3 (the leaked photo's off Kratos fighting a turantula on Gaia's wrist and fighting Poisedon).
So now, Journalists knowing what will be relased a month from now know that DI has delivered, but waiting a month will give buyers something far more better for their money.