The title is self-explanatory, and this might be a pretty basic question, but I thought it would be fun to see what everyone's opinions were! Just post a comment down below, listing your favorite VOCALOIDs! You can also explain, even if it's just "I think [VOCALOID] is cool because I like their design." I'll share my own opinions!
I personally really like the MEIKAs [MEIKA Hime and MEIKA Mikoto] because their designs are unique and their voices sound great! I don't have a personal preference between the MEIKAs since I just love them both.
I also like Mo Qingxian, and she's one of my favorite Chinese VOCALOIDs behind Xingchen. Qingxian is pretty and her voice fits her. I also really like her character background. If you know any songs produced with Qingxian's voice, let me know because I want to listen to more of her voice.
While Haruno Sora has a very pretty design and is quite aesthetically-pleasing, I don't like her voice that much. However, if her voice was just a bit different, I might like her.
UNI has always been one of my favorite VOCALOIDs, and I believe she was one of the first VOCALOIDs I had familiarized myself with when I rejoined the VOCALOID community about 2 years prior. Her design is adorable, and although I cannot understand a word in Korean, I love the Korean VOCALOIDs! I often see UNI and SeeU as a duo and kind-of the poster children for Korean VOCALOIDs. I hope we can see more Korean VOCALOIDs in the future.
SeeU is also a personal favorite, and I was introduced to her alongside UNI. SeeU is also really adorable, like UNI, especially with her cat-like appearance. I like both SeeU and UNI's voices very much, and they also sound very good together! If you have any SeeU songs you know, please post them!
Xingchen, better known as Stardust, is honestly my favorite VOCALOID. Although she's a Chinese VOCALOID, her songs (ex; Chén Jiàng, StarLaLaLa, Qǐ Wù Yuán, and Xīng Yuàn to name a few) are beautiful and I adore her voice and design! I listen to her songs quite often, and I'm glad she seems to be at least decently popular with all her songs (according to the wiki, Xingchen has about 125 songs)!
Fukase. Just... Fukase. Many people like him and I like him too. I like his design, his voice, and his songs. That is all about Fukase. Fukase is Fukase and we appreciate him here.
CYBER DIVA! CYBER DIVA is my favorite English VOCALOID, although many people say she sounds like/is Lady Gaga. DIVA is different than her in a few ways. While some of her songs may be saddening or have questionable themes, it's nice to listen to songs I can understand in their entirety, being a native English speaker. While GUMI also has a lot of English songs, DIVA remains as my favorite English-speaking VOCALOID. DIVA's design is also quite interesting. Despite her physical appearance being her head, people can play around with her outfit design, which is fun to see.
Other VOCALOIDs I enjoy to a lesser degree based on their popularity are:
Hatsune Miku, GUMI, MEIKO, KAITO, Kagamien Len, Kagamine Rin, Megurine Luka, and OLIVER.
Again, you don't need to give a whole essay as I did. You can simply list off your favorites, and that'll be fine! I hope to hear from you all!