How about these:
Not one thing Russell predicted happened -- Armageddon, overthrow of all governments, etc.
Russell and company did not go to heaven in 1914.
1914 was based on chronology such as led to the now-abandoned date 1874 for Christ's return.
Wars since 1914 have killed roughly the same percentage of population as during the previous four centuries.
Famine and pestilence have killed far fewer people as a percentage of population.
Earthquakes kill 3-4 times fewer as a percentage of population than they did 300 years ago.
The world has experienced a population explosion in the 20th century -- the opposite of what would be if the "composite sign" events were killing people on the scale that Watchtower claims.
The same organization that claimed 1914 would bring "the end" also claimed that "the resurrection of the saints" occurred in 1881.
The entire 1914 chronology is refuted by 2 Chronicles 36:20 and Jeremiah 25:11, 12, which disproves 607 as the starting date for the cherished "gentile times" notion.
Here's a long but very good quotation, from Carl Sagan writing in Broca's Brain, pages 332-333 (Ballantine Books, New York, 1982):
Doctrines that make no predictions are less compelling than those which make correct predictions; they are in turn more successful than doctrines that make false predictions.
But not always. One prominent American religion confidently predicted that the world would end in 1914. Well, 1914 has come and gone, and -- while the events of that year were certainly of some importance -- the world does not, at least so far as I can see, seem to have ended. There are at least three responses that an organized religion can make in the face of such a failed and fundamental prophecy. They could have said, "Oh, did we say `1914'? So sorry, we meant `2014.' A slight error in calculation. Hope you weren't inconvenienced in any way." But they did not. They could have said, "Well, the world would have ended, except we prayed very hard and interceded with God so He spared the Earth." But they did not. Instead, they did something much more ingenious. They announced that the world had in fact ended in 1914, and if the rest of us hadn't noticed, that was our lookout. It is astonishing in the face of such transparent evasions that this religion has any adherents at all. But religions are tough. Either they make no contentions which are subject to disproof or they quickly redesign doctrine after disproof. The fact that religions can be so shamelessly dishonest, so contemptuous of the intelligence of their adherents, and still flourish does not speak very well for the tough-mindedness of the believers. But it does indicate, if a demonstration were needed, that near the core of the religious experience is something remarkably resistant to rational inquiry.
AlanF