Her hair is so gorgeous when it's down, but I love the odangos. I would love it if they messed with her hair used different variations of the odangos. 
By the way, I saw a picture of Minako wearing odangos (there was 3 and her hair was still down)

I wanna seeeeeee XD

I'm with Verdandi on this one. I love when her hairstyle varies, but when there are still odango incorporated. She could even wear them in a different shape sometimes! But I like when they're there in some form because of the suggestion of rabbit ears, reflecting her name and the rabbit on the moon myth... I think it just fits her history so well.

i love the odangos, they are a trademark, but i would like to see more variation. shes got a lot of hair, why not try some new styles?

i would have liked to have seen Usagi's odango pigtails braided more often.She only wore them like that once in the manga and in an artbook

I would like it if Usagi had variety more often, add long as sailor moon was always the same

I absolutely love her odangos, and I also think some variation would be nice as well! I've always had one tiny issue with her signature style though...isn't that hairstyle uncomfortable when she's sleeping?! Granted, she's probably so used to it that it doesn't bother her at all, but I always feel like it looks so uncomfortable to sleep on! Especially if she has bobby pins in there! Haha

I've worn odango to sleep.It's a little uncomfortable but i didn't have bobby pins in it

She takes them off when she sleeps and wear ribbons in her hair instead ^^ There have been a couple pictures of Usagi just waking up that way (in the manga, at least).

The buns are best in my opinion! Though I really liked the moment in the manga/crystal where her hair started growing longer than her. It'd be nice to see her with just flowing locks~

I love Usagi's hair - with odangos or without them. I would love to have long and flowy hair like Usagi! I like that Naoko made odangos her signature style, but Usagi should wear her hair down more. I loved when her hair was down in Sailor Moon Crystal! To be honest I was waiting to see her without her odangos...

Spoiler:

I thought she became Rapunzel in that scene.I was waiting for her to start singing the healing incantation

I couldn't agree more with the generality of this thread. The ondagos are just her, but it was real treat to see her this way. I say that because I have short hair like that, currently. She looks beautiful like this and anyway, I swear. 

Her odango's are her signature look but I look her hair in other hairstyles as well. It's really refreshing and I find a lot of them very cute. Plus she has so much hair anyway...why not switch it up from time to time?

I've always been really fond of this hairstyle on Usagi:



I couldn't find a bigger pic but you can see it a little better in this gif: