For me, the story and world of Lunatea is my favorite thing about it, Lunatea's Veil feels very different from the DtP, i used to see that as a negative, but now, as a positive, and, yeah, it is crazy.
Altho, at the same time i find the world, organic style, levels and characters of Phantomile more charming despite not being as, well, unique, and, same goes to the music of Door to Phantomile, those 2 things are my favorite things about both games... As to why i think DtP's music is, the peek of the series' soundtrack? Well, everything stands out so much and, the melodies, the energy, oh god, how much they fit, how i can sing the entirety, even the shorter songs that play at specific points by heart, L'sV has a good soundtrack for sure, but, it's, not as "melodic" per say, more focused on atmosphere, and they are great for that! But they never stood out as much or had that energy from DtP...
Moonlight Museum has best style tho, so i lied. 
