Voices I hate the most:
Miko's voice is annoying and unbearable. Anyone who watches her hoping to do some reps is going to have a bad time as she's unintelligible a lot of the time because of her dumbass voice. Her laughs and screams are the worst though, which is 80% of her streams. Literally hurts my ears. Also, not related to her voice but she's so retarded it's not even entertaining. Actually mentally impaired. I fucking hate her.
Subaru's can be pretty grating. Not because I dislike her or her voice in particular; she has the perfect tomboy voice and it's fine for the most part but occasionally her voice, along with her screams, can reach pitch levels that shouldn't be possible or legal. Can actually cause tinnitus.
I hate Korone's fake laugh she does at the end of almost every uttered sentence, but other than that her voice is fine.
Out of the ENs I can't stand Kiara's, Sana's, Bae's, Mumei's and Kronii's voices.
Other than that, there aren't really any voices I hate.
