Originally Posted by Magnetite
I personally think Nadal will still have the edge on clay, with Djokovic having the edge on hard courts.
On grass it's a toss up at this point, until they play each other more on that surface.
I could be wrong, but this seems to be the most likely scenario.
I pretty much agree with this, as long as Nadal doesn't revert to his 2011 clay form, he has the edge on clay, Novak has the edge on HC and we will see about grass if they meet at Wimbledon. Slight edge to Rafa if he beats Novak a couple more times before then.