I keep trying to watch anime, but every time I watch a series that goes past 12 episodes, something retarded happens and the characters stop being relateable... Or the series gets shonen-ized, where it drops all originality and just becomes action scenes of people fighting. Common symptoms of shonen-itis include a tournament-fighter arc and the protagonist breaking the limit of possible power multiple times.
The ones I have liked are FLCL, Full Metal Alchemist: Brotherhood, and Tokyo Ghoul. I haven't seen Samurai Champloo all the way through (same with Cowboy Bebop) but what I saw was great. Black Lagoon was good until they had this annoying four-episode arc entirely focused around these out-of-place "creepy assassin children" and it was so cliche and predictable, I hated it. Everything else was awesome though.