Katawa Shoujo?
woops forgot to list that one, added
Higurashi
Kanon
Watched their anime first and tried to read both of them, but I couldn't get into them that much. At least, Kanon was pretty augh from the one arc I read. I liked the Higurashi VN more, but I stopped because... actually, I have no idea why I stopped, it was pretty damn good, I got into the middle of the second or third chapter. But yeah, already have both of those >_>
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KrahenProphet and Kana are on opposite ends of the Awesome Spectrum.