Why do people hate Osako? I get the Haurka and Tsubasa hate, and wholeheartedly believe the game would be significantly better if Nodaka wasn't in it, so I get why they're all at the bottom. But was surprised to see Osako there.
Osako has been widely considered a bit of a bland and spineless character whose main character traits seemed to be being Wakana's lesbian girlfriend and therefore also being one of the few females not at all interested in Akira.
I personally don't hate her and wouldn't want her gone, but I also find it hard to come up with arguments for why she could be someone's favorite.
But I have to praise Sel here for a moment, as I feel he has addressed her character development, or lack thereof, and tried to flesh her out a little bit recently. He made Akira acknowledge her value for being a potentially good friend, exactly for the reason that they would not be into each other. And her becoming a bit more proactive and independent, making sound decisions and genuinely trying to better herself finally. I find what's going on between her and Akira is becoming really wholesome and is hopefully developing into a kind of buddy relationship that he intended to find in Imani (who I feel is in turn stalling now in her character development). Also he fixed her hair, she is cute now.
Regarding Nodoka, by the way, I would definitely disagree with you though. I personally also don't like her personality at all, as in, I would absolutely not want to be friends with, let alone be romantically involved with, a person like her. But she is unique in many ways.
First off with her connections to other characters, not only the main 20 + 15 side characters, but more notably to more mysterious characters. But also with her immense world knowledge and neurotic and obsessive view on and approach to things. She could become a crucial character in the plot and would be absolutely missing if she somehow vanished.
Also, any good story should always include unlikable people.
Which also means that I actually don't
hate any character currently in LiL. Which is a testament to the writing. While I dislike a few of the girls, or even gods, involved in the story, they all play a vital role and the game would be worse off without them.