Id probably have to say its a battle between, ToraDora and Clannad... While ToraDora is sweet and quick to the point, Clannad is a much more mature story and goes really indepth so it all depends on how much you wanna know.. if you wanna see an anime that takes you far into the lives and romance of these people check out Clannad if you want a cute but short story thats absolutely awesome check out Toradora n___n