i don't really dislike any characters, it's more so i don't care about them. but i don't care about sword from phighting, i just never really got attached to him

other way around, I quite like Mr. Lopee but I don't see anyone talk about him. : (

Lots of "moe" female characters in anime are in this category for me. It seems that in trying to overload the viewer with cuteness the writers often forget to give a character any agency or significance in the plot. The epitome of this is Mayuri from Steins;Gate, who seems to only exist to get saved by Rintaro a few times. I guess for some people, cute character design is enough, but not me.

I find it rare that I dislike a character, I'm quite sure I have one in my noggin somewhere... Gimme a second; ....

Okay maybe I'm not a huge fan Minamoto Teru from TBHK, because of how he shows little to no interest of understanding Hanako-kun and would rather go straight to exorcise the spirit/ghost. Otherwise, in a positive light, that just means he's not naive or gullible like Yashiro Nene or his younger brother Minamoto Kou.