Not sure if this has already been mentioned, but would anyone else agree that had Rosberg been at Mercedes this year, neither Lewis nor Nico would have won the championship? Nico was a stronger (and more combative) teammate than Valteri. And I believe that while Hamilton would have outscored Nico, the two of them would have taken enough points off of each that neither would outscore Vettel (even with all of his many errors).

Just a passing thought.