Pandora Hearts, people know about it but because the animê sucked it didn't get as popular as it should. The mangá is AMAZING if only the animê could have been as good.
posted over a year ago
That was the one that I was thinking about when I was asking this pergunta
The Melancholy of Haruhi Suzumiya. A lot of people either dislike or don't talk about this anime, but I found it pretty enjoyable from what I'd seen. It wasn't the best ever, but I think people tend to undermine it a bit.