I've seen my share of anime TV shows over the years, but haven't really completed viewing many. The last one I finally finished was "Black Lagoon," and was thoroughly disappointed with the ending. In my case, if I don't watch anime shows in marathon runs, I'll most likely end up not finishing them, or coming back to them years later.
So the most recent shows I've watched until the end were.. (And this is over a span of 5 years :P) Black Lagoon, Genshiken, Last Exile, She's the ultimate weapon.
Shows I've watched quite a bit of but never finished include, Gankutsuou, Gundam Seed, Samurai Champloo, Code Geas. Yea, a lot of quality titles. :P
