In no particular order:

Ballroom e Youkoso - Good characters, good arcs, dragged a bit at the end but this was the show I found myself waiting for every week and totally engaged in.

Net-juu no Susume - It was a really cute adult age romance series. They tackled a number of real-world issues like karōshi, feeling abandoned or left out, late bloomers, and buying too much cosmetic crap in MMOs. The cast nailed their roles completely, and the OP is pretty amazing too.
And yes, oversized hoodies are great.

Imouto sae Ireba Ii - This series honestly surprised me the most. It is a very self-aware series about light novel authors going about their lives, including stupid shit like research trips, playing card or board games with each other, fleeing from their editors, and their individual quirks about their writing styles, motivations, or techniques. But it is also a series about respect for one another and the reasons why you gain affection for someone. Is it because their work moves you? Is it because you love their determination to find their place in the world while you don't know your own? Is it because their work helped you escape the emotional hellhole you found yourself in? Do you just want money and do your due diligence to ensure you get it? Is your work "art" or is it just a product that sells to your specialty market? Do adaptations of your work diminish or improve the value of your original?
The series also makes a great deal of progress with relationships while appearing to not make any. (In fact, the OP changes in the final episode to hint at a conclusion)
But ultimately, the entire series was apparently written as a bet or challenge between two LN authors. And it works surprisingly well.

Honorable mentions: Shoujo Shuumatsu Ryokou, Kino no Tabi, Osake wa Fuufu ni Natte Kara

Mahoutsukai is still airing so it is exempt by the standards of this thread. Otherwise I'd mention it this season AND the current season.