Originally Posted by kragster
You are mostly right although one could also argue that the 'harder draw' for Federer is nullified by the fact that Fed scraped through RG 09 while Nadal cruised through USO 2010.
Also Nadal reached the finals of AO 2012 and USO 2011 so it must be said that it's not that USO 2010 was the only time Nadal made a HC slam final. In fact one could argue that based on slams, since 2005, Nadal has been at least the 3rd best HC player.
Overall 3rd best since 2005, sure. But Federer was 2nd best on clay by tournament format by virtue of making the final every year before he actually won the French. The same cannot be said for Nadal on HC.