I don't agree with any of you. Gazetta doesn't watch a match generally(from what i have read), it's more or less like Castrol rankings. Sneijder was VERY EFFECTIVE with his few through passes, he was a GENIUS, but that was it, he sent 4-5 great assists and held the ball up a little bit, but not much throughout the 90, while Cambiasso had Lampard and Ballack in his pocket the whole match, Cambi had 90 minutes of greatness and hard work. They both got 8s, which is what they both deserve, or maybe both having 8.5s.
By the way, the way Castrol rankings work is by calculating a player's moves, passes, tackles and EVERYTHING there is in football, and how accurate/effective they were as well as on how important parts of the pitch. So small unnoticed things mean a lot there.
All in all, i agree completely with the ratings.