well i vote for
saikano - fictional "would-be-war" drama, real good presentation and the only things to complain about are the back-story of the war and the kinda abstract ending

kimi ga nozomu eien - romance drama thing that's kinda heavy and pretty hard to describe without spoiling the plot, usual high-school (and beyond) drama with great presentation

kini no tabi - short stories about a traveler visiting different countries, hard to classify this, it's kinda like slice-of-life deal with a look at human psychology and why people behave the way they do (well, if anyone can help with the description it would be great)