Everything looks better through rose tinted glasses. I see a lot of 10's being thrown about here. But what warrants a 10/10?
Smooth servers, perfect hit reg, community, learning curve... the list could be endless.
Like I could say SoF2 for me was 10/10. But that was because my experience of it during that time was brilliant, my first time being in a 'clan'. Playing competetive games and generally being a part of something was what made it great, the game itself, could have been anything.
Call of Duty 1 & 2 I look at through the same glasses, it was the age I was at and the fact I spent most of my teenage nights playing scrimmages with mates. So again 10/10... for me.