mushi-shi - interesting premise, great characters, decent animation, amazing voice acting on both dubs, no interconnected episodes (only about three), can't comment on the ending (still watching myself more than 3/4 done, though) 3.5/5
soul eater - fantastic animation, interesting premise, decent characters, alright english dub (I still prefer the japanese dub), on interpretation of the ending (the one most people think of) is awe inspiringly bad 4/5
Higurashi - great plot, hit and miss animation, awesome characters, english dub is awful (except when the characters are speaking in their creepy voices). alright ending, but you have to watch higurashi kai anyway, so I would hardly call it an ending. 4.5/5
Serial Experiments Lain - slow to start, but then gets awesome, not-so-great animation, passable dub (poor syncing, or maybe that's just who hosted the videos). seen less than half of the episode, so maybe I can't comment, but 3.5/5