Here is how I interpreted the situation regarding Claudia's views on Louis (this is not Louis hate at all, nor is it arguing Louis was the "worse parent." It's just examining their relationship):
We have (mostly) two perspectives of seeing Claudia in season one and two, with some pages missing from Claudia's diary, along with clues the shows dropped through the seasons. We also have some context in the reveal, such as the fact Claudia's aunt was abusive (which was also stated in some interviews).
I think to truly understand Claudia's dynamic with her fathers, particularly with Louis, we first have to consider what we know from context (largely from the trial) regarding Claudia "pestering" Louis about how she was turned. This is because, from this point forth, Claudia has to build her understanding of her situation on the foundation of the story Louis told her (confirmed by both Louis and Lestat to have not been the truth). As such, the situation Claudia knows to be true is that Louis went into the burning building, found her, brought her home (why did he bring her home? why not a hospital? - questions Claudia later has), and requested Lestat turn her. Lestat, not informing Louis what would happen (again, this is the version Louis told), turns her to keep Louis with him.
This version, from the jump, frames how Claudia sees her fathers and her situation. Louis rescued her out of guilt, brought her home to Lestat. Lestat then turns her to keep Louis by his side, purposefully neglecting to mention that Claudia would never physically age. Louis, even though he rescues her, doesn't disclose how heavily he persuaded, begged, and pleaded with Lestat to turn her. This leaves him to take a more passive (something he later detests about his book depiction) role in her turning. He'll bring her home, but he has Lestat actually do the work of turning her while he stands to the side. Why home and not the hospital? Louis never answers, but it's largely because of his own guilt, and desperation to preserve someone who for a moment still saw goodness in him.
Claudia takes to vampirism alarming quickly, which makes some sense given the fact she'd lived a life of grief and abuse. She has an opportunity; she's going to throw herself into it. Louis during this time is starving himself and living off animals, something that disturbs Claudia when the two go fishing together. This leaves Lestat to teach her how to feed, dispose of bodies, etc. Notably, Claudia documents in a diary entry that Louis is her favorite, but that she and Lestat have a lot in common (hunting together, amongst other things). There's no reason for Claudia to lie about Louis being her favorite at this point, but this also alludes to the fact that she has to separate the vampire part of herself with more human part that Louis prefers. This is also important when you consider how she wrote that Louis was put off by her behavior at his mother's funeral, and tells her she has to spend more time around people, whereas Lestat felt she did just fine. This isn't a "Lestat was right and Louis was wrong" post, it's just me contrasting their different approaches.
Louis doesn't stop them from killing, he doesn't fight with them to (notably, Claudia was not present when Louis tried to argue alternatives with Lestat), he just tells Lestat to not kill in front of him, and asks Claudia to try to fit in better with humans. He didn't turn Claudia, he just brought her home (again, Claudia doesn't know that Louis DID try to turn her, but didn't know how). Then, when Claudia accidentally kills Charlie, Louis is standing there, both of them waiting for Lestat. Notably, Lestat is the one Claudia asks to try to save Charlie, as though Louis isn't right there. Louis largely stands quiet as Lestat attempts to handle the situation (which he, notably, does not do well), and when he argues with Lestat you hear Lestat ask in frustration if he was supposed to just tuck her and Charlie into coffin together (something to this effect, I cannot recall the exact line). Lestat took action based on his own trauma that...then traumatized Claudia, but Louis didn't have an answer, nor did he try to come up with any possible solutions. (Frankly, I think Louis let it happen because he knew nothing could be done about Charlie, but didn't want Claudia mad at him. Louis made a lot more decisions than Claudia fully realized).
Louis then leaves wingless birds in Claudia's room, assuming she's in her coffin refusing to feed. Lestat is frustrated, and speaks up to shatter Louis' humanizing perspective by saying there is no possible way that Claudia just hasn't been feeding the entire time. Both of them then, out of their depth, read through her journals. Lestat and Louis are both angered by them, due to how Claudia portrayed them, as well as how reckless she is being. Claudia asks Louis if he's going to do anything to defend her during this argument, and Louis describes himself as crossing his arms and looking to the side. Again, having Lestat handle the situation. This isn't Louis being as passive as Claudia perceives him, given he and Lestat CLEARLY talked the whole thing out beforehand, as they choreographed their entrance.
The questions Claudia asks Louis and Lestat after the police search also inform us on how she sees their dynamic. Who is going to be her Lestat? Who is going to be her Louis? Claudia knows those two revolve around each other. That, no matter how much they fight, their hearts beat in sync. "Which one of you is going to fuck me?!" Is a disturbing way of Claudia articulating, "which one of you is going to love me?! Which one of you will choose me?!" She doesn't want to be alone. She even points out to Louis how, if he'd taken her to a hospital, perhaps she'd have a husband and some children by now. She's spent most of her dynamic with Louis and Lestat acting as glue, physically sitting between them even at the movies, jumping in to join their dance.
It's worth noting that Louis and Lestat do LOVE her, but they're so caught up in their dance that Claudia will always be the one cutting in, welcome or not. They're both doing their best, but they're both failing her. The difference is that Louis NEEDS Claudia to see him in a good light, his happiness is dependent on her, so he often presents himself as having made less choices than he actually makes.
Even when she returns, she's the one taking care of Louis, cleaning up the mess of a house, and acting as the driving force behind him refusing Lestat's apologies. When Louis is left alone? He goes back to Lestat again, and Lestat drops everything to be with him. Lestat then returns home, but by this point Claudia is sick of it. She needs to eliminate one of them and, due to Louis' guilt, she feels she can convince him to kill Lestat. There was no world where she was going to convince Lestat to kill Louis instead. Louis saw her solely as their daughter, whereas Lestat noted at the trial that he saw Claudia for the clever, cunning, and ruthless vampire that she was. Claudia knew she could manipulate Louis' guilt, create a story strong enough to persuade him, and then try to use his perceived passivity to her advantage. Louis never knows the truth of the full plan; his role instead is to distract Lestat by just carrying on being with Lestat. What she didn't predict was his love for Lestat ran deeper than she originally estimated, and that Louis is not a passive participant in his own life. instead of letting Claudia burn Lestat, he wrapped his hand around her throat and refused. Even with Lestat supposedly dead, Louis loved him more than her.
To cover every part of their relationship in season two is...daunting...to say the least (let me know if you want a more thorough analysis on that), but we see them through their highs and lows. I truly do think Claudia felt more for Louis than pure hate, but I think both of them felt overwhelming bitterness towards each other. Louis refused to believe Claudia that Armand choked and threatened her, taking the side of someone that Claudia knew for a fact he didn't love nearly as much as Lestat. Meanwhile, in Madeline, Claudia finds the love she's been looking for. The person who sees no one in the room but her, who sees her kill, who sees her feed, and isn't scared of her. This is Claudia's big point she emphasizes to Louis, that Madeline wasn't scared. This is both to emphasize Madeline being a good candidate to become a vampire, and that Madeline didn't love Claudia in parts. Claudia could be the killer, and Madeline loved her just as much as the more human parts of Claudia. She saw her wholly.
Louis states that Claudia, after Madeline's turning, told him that they were "even" now. I think Claudia really was grateful for this. This is something Louis didn't want to do, but that he made the choice to do so that Claudia could be happy. I think this is why Claudia and Madeline come back for a proper farewell, as there's no other real reason for Claudia to do this. She's no longer trying to manipulate him; she has no reason to. This choice leads to her and Madeline's capture/demise. Claudia is a spirit unable to find the love of her life because she chose to say goodbye to Louis and walked into a trap. Then Lestat is at the trial, and if Lestat was going to be able to save one person, he would always pick Louis. Whether Louis helped kill him or not, Lestat would always pick Louis. Madeline chooses her, only for Claudia to be stuck as a spectator, unable to find the one person who chose her above all else. Louis, meanwhile, survives because Lestat did.
It's not "Louis specifically sucked as a parent," or "Claudia always hated him most." It's that Claudia never WANTED to be the result, or representation, of Louis' guilt...and that's what she is immortalized as. Her diaries that she hated being read by Louis and Lestat are made public, Louis kills Bruce despite her saying when she was alive that she didn't want him to, her dress is hung up as a symbol of Louis' heartbreak (the dress Madeline made for HER, the one Madeline said she looked splendid in), Louis tries to end his own life to be with her, and Claudia again exists as a symbol of his depression. I will also say - this is more of a surface level read of Louis' extremely complex feelings, but I'm seeing this from Claudia's perspective. The dress honors her the same way the mess did while she was gone - a symbol of Louis' depression at not having her there. Then, once again, she's expected to come and clean the mess up.