Generally, the ranking seem to be correct but there are some parts that make me wonder how this was done...
After all, ISU ranking does make sense.The way I read the ISU ranking is that the 2007-2008 season result is now dropped, which means only the results from 2008 to 2010 are considered. In the 2009-2010 GP season, Asada bombed, failed to make GPF final. Plus, Rochette did beat Asada at the 2009 Worlds. All things considered, Rochette came out on top due to her 2009 World win over Asada and slightly better results from the GP series in the 2009-2010 season. This seems fair enough, Rochette did score several wins over Asada in the past two years whereas the Kerrs never defeated Virtue/Moir, that ranking was a little whacky and a direct result of V/M missing the 2008-09 GP season entirely due to her injury.