2009 was like 2008 but no mono-Fed, Del Potro instead of Fakervic, Soderling instead of clay court mugs, and 3 quality GS finals instead of 1. I will agree though that 2010 was the low point of tennis for quite a long time, while 2008 was one of the better years.
Federer played like crap at Roland Garros and Wimbledon in 2009. He almost didn't beat Del Potro and Haas at Roland Garros, and ALMOST didn't beat Roddick at Wimbledon where he played a poor level of tennis off the ground. That level isn't good enough to even stretch a healthy Rafa. It's been all downhill since 2008 when he really was close to the Rafa level at least at Wimbledon 2008.