Yeah Myus add their own side plots, characters and settings to the major storyline when speaking about the manga/anime storyline inspired shows and also mix up the storyline versions, making each different and special in their own way rather than following the manga/anime storylines strictly.
I agree with Brit about Miki Kawasaki, she most likely wanted to play a male role and was given the opportunity to do so now. I personally think that Kunzite was one of Miki's best roles with Le Fay, and she did a great job in Starlights (and later in Kakyuu, as well). Starlights is, for me, the Myu that focused on Shitennou in the best way and their theme (By Heaven! Kami Nomi zo Shiru) fits them very well.
I have mentioned this earlier, as well, but What For!? Shinjitsu no Kajitsu number was one of the best moments of Starlights Ryuusei Densetsu and I really hope that we could have heard the song in Kakyuu Ouhi Kourin, as well.