@Serenata they're my favourite at least. They're the ones that come across as being a real, totally in love, honest relationship. This couple definitely fucks. But in a cute, soft focus, offscreen TV melodrama kinda way.
@gronkle and @Serenata It was my favorite (couple), now that the others are better than before, I love them ALL. Even the debate club that I didn't get the point for a long time, now I just can't wait to see Nononon again.
But It's true that Chie and Ai have some of the best chapter, like chapter 48 and 49.