Watch Dogs PS4 in the US sold 977k whereas Titanfall Xbox1 globally sold 902k in the 1st week. Currently, Titanfall is at 1.8 million on xbox1 and 0.76 million on xb360 for total around 2.5-2.6 million. I'm guessing Titanfall will sell about 7 million lifetime on consoles (4.5 million on xbox1 and 2.5 million on xbox360; I'm not including PC digital because no one knows). Watch Dogs sold about 4 million (this probably includes PC digital which no one tracks) in the 1st week (PS4 alone globally is probably around 1.8 million in the 1st week which may beat Titanfall xbox1 current lifetime total), so I'm guessing Watch Dogs will end up at least 15 million lifetime on consoles (6.5 million on PS4, 4 million on xbox1, 2.5 million on xbox360, 2 million on PS3).
Hypothetically (yes, I'm sure some will bring up that MS funded respawn or PS4 currently has a larger install base), if Titanfall was released on all consoles, I bet Titanfall would get close to doubling its sales total. Instead of 7 or 8 million lifetime total, it could have been 15 or 16 lifetime total. Respawn missed out on 6 or 7 million additional sales which potentially is about (6 million * $50 average sale price) $300 million dollars in revenue. Not sure how much MS gave Respawn, but it doesn't make up in $300-400 million dollars in lost revenue. Personally I think Titanfall is a better game than Watch Dogs (I'm also sure lots will disagree).
