Did Microsoft release its hidden 2009 exclusive catalog to this guy? Compare announced exclusive titles between the platforms and you will see a problem with this article. Ninja Gaiden 2 was released in 2008, it is not a 2009 exclusive.
Microsoft biggest 2 exlcusive franchises are Halo and Gears of War. Gears of War is owned/controlled by Epic and it is all but certain to go multiplatform in future installments.
I agree that Sony was able to stockpile franchises over the last 15 years, but just look at this generation. Sony has developed new IP that will have sequels for years to come, Motorstorm, Resistance, Uncharted, and inFamous. What new franchises have MS given us, Too Human?
In terms of exclusive titles, 2006 and 2007 were clearly in MS's favor, and so it should be since it is an older platform. But you could make a strong argument that 2008 is in Sony's favor, at least a tie. GT5p/MGS4/Resistance 2/Motorstorm 2 compared to Fable 2/Gears of War 2/L4D (MS only controls 1 of these franchises.
In terms of announced 2009 titles, Sony's catalog looks to be far superior to MS's. We will see how the year shapes up, but either MS has become very good at concealing its game release schedule or they are going to let the success of 2009 ride on exclusive DLC releases.