>>1813966>Opinions.Just because you don't like her or you believe in the 'no redeeming qualities' bit doesn't mean that she is worst at anything. For a tsundere, she has plenty of reasons to act the way she does.
Personally, I like her a lot - not just because she is an interesting character and essential to the story, but I can see a lot of likeable characteristics in her as well.
>>1813829Recommendation to OP: Read the manga at least a little bit at first, if you can. Many say that Kirino's tsuntsun is exaggerated in the anime adaptation.