Mai-Otome 0~S.ifr > Mai-Otome > Mai-Otome Zwei (and the dvd specials are always a plus, #7 remains my fave)... I for one didn't watch the series until recently when i saw a complete databank.. and I watched it in that order.. and then I watched Mai HiME lol
*can't think of any other besides to-LOVE-ru Trouble.. or rewind Kemeko DX
Kimikiss maybe..