Roughly the same, but I think God of War will have a slight advantage.

god of war released on a console where piracy was huge.
but the console userbase was so huge good game sold 3 million.

GOW3 will pass 3 million easily. uncharted 2 will do it on legs.

i am gettin both

Uncharted 2 can appeal to more people than GOW 3. I am getting Uncharted 2, not GOW 3.

Hmmmm....I can only see GOW 3 do 2.5m-3m with proper advert TBH and Uncharted 2 around the same depending if sony cuts the price this holidays.

If the game has sold over 2 million sales...I doubt it wouldn't be popular. Even the psp game sold fairly well ( 1,77mil) when piracy was going on.

EDIT:

On topic, I predict the following :

God of war 3 :

700k first week.

4mil lifetime.