1) A man came as a great warrior and committed much evil, murdering, raping and
plundering.
2) And another came after him in the guise of righteousness, perverting the people's minds to false notions, blinding them to the truth, binding the hearts and minds of men to mental slavery from generation to generation.
Who is the greater sinner?
If i was pushed to answer, i would actually go for the first. Of course the 2 categories are quite vague/broad, and there is clear scope to construct specific examples that fit in the latter that are more evil than specific examples constructed to fit the first, and vice versa. And of course if we descend into some cost benefit style analysis of which category holds the most of the 'more evil' examples, i would feel as though parted from the ethos of the question to begin with. (not to mention that it would be an almost fruitless endeavour)
Thus my justification for ultimately going with the 1st is as follows; that the permanency of murder is so absolute, that to cross that line is to deny that person everything, all that it means to be alive, to be a person, to be sentient. It is the greatest coercion and invasion on the rights and freedoms of another, to take away their very existence.
I dont deny the insidious evil that can manifest through manipulation and false teaching, there will be many heinous examples, but the sheer terminal nature of taking a life, and the direct link between motive, action and consequence that defines murder is enough to sway me to choose the 1st of these broad categories as the most unacceptable.