US Open Final. Obviously not because of the quality though.
Realistically though first 2 sets of Berdych vs Nadal at the Australian Open was probably the best 2 sets I saw this whole year. Best 2 sets on clay would also have to be their match in Rome. Not even biased here because Tomas didn't even win both matches or even push either to a final set.
True especially in that AO match. Tomas was hitting 549786878 winners just to win a point vs Nadal that day. The AO surface is awfully slow. It was a bit painful to watch Tomas's bullets get back again and again but Tomas played his best in the 1st 2 sets so we can't blame him. If the surface was a bit faster, the result could have been different. It was a great match anyway.