All watched yuri-themed anime in order of my personal favourites.
Anime that have 30+ minute episodes 3+ episodes (3 movie series at the end that I feel belong on this list)
I only buy what I can watch more than once, so with that in mind, here's the list:
My Completed Anime
In my opinion, these are all wondrously well made, enjoyable, gripping, and/or meaningful. (Or in Marimite 3rd's case, just so wonderful!)
Note that Higurashi Kai and Tale of Melodies are sequels, obviously you'd have to watch the earlier...