He was the 2nd best player of 2012.
The H2H against his main rivals:
Djokovic: 2 - 3
Murray: 3 - 2
Nadal: 1 - 1
Not bad for a 31 year old playing against 5 years younger opponents.
Roger will not fall out of the top 4 next year as the haters eagerly want and already started saying.
He has declined. That's obvious, just watch a match from 2005/2006. But his talent and natural ability allow him to still win slams and beat prime top opponents much to the despair of he haters.
4 more years haters and then you can finally rest.
Unfortunately haters don't wanna see this.