We talked about this in the old Batoto comments. While I think he could have more explicitly dropped hints about Yoshino and the France arc was a waste of time, a lot of earlier events were about Yoshino/Masamune interactions and not really Aki. I think the lack of thought bubbles kinda hurts in that regard. There are some, but especially with Aki and Yoshino there weren't enough early on to help explain their mindset during various chapters.
I like Yoshino more, as she's been kinda dumped on the entire series, but the "title girl" wins 99% of the time so I'm not getting my hopes up much.