So, don’t make me say things I never said. That would be nice and it would keep the conversation from being skewed or derailed.
First of all, I’m not saying one is better than the other. Since you say I only presented two choices ‘Kusunoki <> Hebikawa’. If I misunderstood, my bad !
Now let’s clear this up, what I’m really explaining is why characters with strong personalities are usually more appreciated than those who are more reserved.
And how exactly would failing at something suddenly make her character more interesting? Is she suddenly going to become number 1 in the fans or your eyes, ahead of Hebikawa? Let me answer that for you, no
As for this whole ‘perfect girl’ or ‘she succeeds at everything she does’ idea, I wouldn’t call that perfection but development? Because as a reader, you know she isn’t the flawless, untouchable girl people think she is. In reality, to use your own words, she’s quiet, awkward, anxious and constantly following behind Shizuki. That’s far from perfect. The fact that she manages to achieve things, like making friends, succeeding in her theater play or becoming less dependent on Shizuki, shows she went from point A to point B. She’s a girl who faces and overcomes her fears. That’s the point of her character. How is that a bad thing? And you could say the same for Shizuki, he has his moments of doubt that he also manages to overcome. So, subjectively, I don’t see how failing at something would suddenly make her more interesting. Let’s say the author actually listened to you and made her fail, would your perception of Kusunoki really change? (I don’t think so). Like Hebikawa must have failed a lot, to make her character favorite in polls . Let’s just pretend it’s not her strong personality that makes her popular and not ‘boring’ like a certain FMC…
Whats brings us back to the point of my previous post: if Hebikawa is more appreciated than Kusunoki, it’s because audiences tend to prefer strong, vibrant personalities over quiet, calm and reserved ones like Kusunoki’s.
Anyway, if Kusunoki bothers you that much, maybe it’s better to follow another romance. Even if she fails at something, chances are she’ll still overcome it in the end, so it’s basically the same. The author won’t make her permanently fail at a goal
A well-rounded character would not see themself succeed at every challenge presented before them, much less to such spectacular extents as Kusunoki achieves in every example found in the manga to this point.
She never actually stumbles; sure, she's hesitant and anxious beforehand, but the moment she steps up to the plate, she surpasses everyone around her, even with equivalent effort put in by the others.
After awhile, that gets boring. She never gets second place, she never actually stumbles or falls in the actual act, and I suppose until we get her backstory, it begs the question how someone with such latent talent ended up in need of a "debut" in the first place - because most people would assume you'd not score a perfect grade on a test at least once, or not surpass every other person in athletic ability, and then end up like she has
still where she has to couch every sentence with "oh but please pardon me if I'm intruding in your space".
It very much reads as humble-bragging, that combination of ability and apparent modesty in the face of it. Sure, no one seems to call her on it in the manga itself, but that's because all the characters are too busy fawning over her to do so.
And to reiterate -my position is that Hebikawa is
more interesting of a character than Kusunoki, in the broad sense of their characterization within the manga. That manifests in different ways for different people, including the descriptors you've provided twice.
But in essence, because Hebikawa range to her character in terms of her flaws and imperfections, and her potential trajectory of growth within the manga
because she can fail at things, she reads as more dynamic and thus, I posit, the more narratively interesting and characterized of the group.
To your last remark - I enjoy most aspects of the manga, and simply find the title character tragically underwritten compared to the others at present because she's effectively ended her character arc in achieving her Debut, while the others are all still working their way through the narrative. Kusunoki's outpaced them all and left them behind in the plot, and with her aggressive denial of romance in a romcom, I get the sense she's out of place within the story at this point, and now has to be written back into the narrative by force because of it - and I wonder if that risks turning other characters into props in an effort to facilitate Kusunoki not simply drifting out of the narrative altogether.
I'll leave it at that, though. I've reiterated these points multiple times before without ever gaining a truly meaningful dialogue from it in terms of coming away with something substantive, and so I will simply say "good day" and leave us both to our thoughts from here.