I really liked the FMA anime, haven't read the manga though
Well ok, it's not your happy happy fairytale anime, but I did think it was really dark or anything... but the storyline does get darker but I thought that was gradual and is trying to show the maturing of the main character... or may that's just me.Omg, FMA is too dark for me. I stopped after like the 9th episode or something. I saw bits and pieces after that. I also kinda-sorta know what happens.
Other anime / manga: Inuyasha, Fruits Basket