You want me to talk about Sailor Moon songs I DON'T like??
Ummm.... let's see... uh... there's a few pieces of the BGM I don't like as much as the others. Moon Gorgeus Meditation didn't have great music (that whole move in general was a bit grating, except for the cool Kaleidoscope wand and finding the name 'twinkle yell' amusing). But I dearly love most of the BGM, especially Yuugure Toki wa Youma no Yokan Part 4 and 6, and Hoshizora ha Mysterious - Part 5, those are downright beautiful songs.
...but you mean image songs, don't you? Sailor Moon had bad
image songs??? I mean, even the two I've heard for Crystal are pretty good (Moon Pride and I'm Going Down, especially the latter). Even the DiC Dub had it's moments on songs (My Only Love is amazing). But bad credits songs, in the original anime?? I don't mean this as an insult, but you people are all crazy.
Uh... I guess I have middling feelings on Nagareboshi He? I like Todokanu Omoi a lot more, I wish that was their main Three Lights song instead (though saving it made it more impactful for the combined transformation sequence in Alluminum Siren's last episode). But I still kind of like Nagareboshi He and I like the lyrics translation a little bit so crud, I like that one too.
I guess I'm middling on Golden Queen Galaxia, but the orgel version is great (and that's the only version that actually appears in the show, as the fitting episode 200 opener).
(Also, Mitsuko Horie sounds amazing singing Sailor Star Song for that one anniversary thing.)
What bad music?
I feel like I'm being asked to vote for which Shitennou I hate, or which Inner Senshi.
There isn't one. (I don't hate any of the outers either, even if I do have weird opinions on what kind of characters Haruka and Michiru are in the anime.)
Okay, there's
sort of one that I avoid listening to on purpose because it gets annoying, and that's I Am Sailormoon.
(As far as Usagi image songs my favorite is Yume Miru Dakeja Dame.) I Am Sailormoon just doesn't have a great melody or tone overall.