Uncharted: Drake's Fortune - 4.97M
Uncharted 2: Among Thieves - 6.74M
Uncharted 3: Drake's Deception - 6.84M
Uncharted 4: A Thief's End - 9.84M and counting.
I remember some people on this site predicting that U4 would sell 10M+, and many of you guys laughing at them. Well here we are on the brink of just that. It could be millions more already if VGC's tally doesn't include digital.
On that same accord, I wouldn't count out God of War.
I second this - It is very likely that GOW will sell more than 7 M lifetime and it wouldn't surprise me if it gets close to 10. The playstation 4 is performing SO well and GOW is just what people want, I think :)