Me, I absolutely love the friendship the old anime had shown us. The filler arc did a good job on the inner four, my impression of it has improved a lot.
The first few DK arc episodes was quite good, when Usagi was the only senshi, she got to use her mind and strength to deal with the enemy. I like that tape episode a lot, when she encouraged that pianist to express his love and not to be ashamed of his age. Such a sweet girl.