I'm not too opposed to any of the concepts tbh.
Cozy Crafts seems the most neutral design wise and easiest to work into what we already have in the game. That's both a positive and a negative imo, it's versatile but doesn't stand out too much in its own right.
I definitely see the appeal of DIY Delight, it's quite contemporary and easy on the eyes. It really has that pinterest DIY clean but cute look to it. I will say though, that personally I don't need more contemporary, modern b&b stuff. I already find the variety enough, at least in comparison to other styles.
I voted for Granny Chic, primarily because the fustier, rustic look is something I'd like to expand upon. We do have a handful of packs that work well for these styles, yes, but I think the contemporary style outranks the others quite a bit in terms of volume presently.
That being said, I won't really care which one wins, they're all fine. CAS wise, that Cozy Crafts sweater on the adult male looks... awfully familiar.