For instance, it's common knowledge that Mass Effect 2 is leagues better than God of War III even thought God of War III has sold more. That's just the nature of the industry.
No, it's not common knowledge that ME2 is 'leagues better' than GOWIII. In fact now that I think about it, ,ME2 only beats GOWIII in storytelling.
It deserved to sell more, but that's EA's own fault for a) not releasing it during the holiday period and b) only sticking to 2 HD platforms instead of 3.