I'm with the Flow on this one too. I'm not very concerned about them ranking Muhammed higher than Jesus- I don't necessarily agree, but I really don't care and in terms of social influence, I'd say it's a tough one to call at this point and all three of the Western religions are so interrelated that it's hard to call one more influential than the other.
But I did take offense to listing Lao Tzu and Mencius so far down on the list. After all, more than one-quarter of the earth's population have their cultures, governments, families, and philosophies shaped by Taoism and Confucianism- and Mencius is (I think) almost as influential as Confucius himself. I think there is a clear bias in the list toward Western religions and inventors/politicians, with little attention paid to many influential people in Asia.
But I hate lists anyway... especially ranked ones.
I'd list in the top ten whatever anonymous person invented domestication. From that was birthed civilization and societies bigger than your extended family. Domestication really was THE event that transformed human society and thus the rest of culture, including philosophy, politics, and religion.