I'm not on Rosberg's side here, I agree with Lewis. But it may well have been an underhand trick (or if intentional, in my view, a brilliant tactic). Some drivers, usually the not as good one, hold value in team agreements made before the race.
Hamilton spent a good amount of time accusing Nico of the same last season and Nico's reputation is forever tarnished. Hamilton has had enough tantrums and made enough accusations in his time in F1 that I'm not about to condemn Nico for the same.
After all, Hamilton's was due to passion and frustration right?
I don't think the question of who is a better driver needs answering, it's obvious.
Who is a better whiney bitch is up for discussion.