I don't know if it's the worst, but I tried to read From Hell but it got too complicated. I mean, I finished reading it, I even finished reading the extra stories and the notes at the end, but I didn't get much out of it. It felt like there was too much unnecessary info that didn't add much to the story or the mystery (much less give any answers). It's one of those times that made me wish Moore would know when to stop thinking and writing.
