Elizabeth I
Philosopher
NUmber 1 is basically a two-sentence synopsis of everything that is conspiracy theory. If a person can't see what is so horribly broken about those sentences, they're probably a CTer.
#1 is pithier, but the Xerex one, that's major whack.
I had to vote for No. 1 because it is pure essence of CT, but No. 4 too because it made me laugh.