Ahaha, everyone seems to be watching Attack on Titan this season. Been seeing fanart of it pop up EVERYWHERE.
My personal favorite this season's got to be To Aru Kagaku no Railgun S, though. So far it's shaping up to be even better than the first season, which I already consider one of my favorite anime series.
Tried to watch Hentai Ouji to Warawanai Neko, but just couldn't get into it. It had an interesting premise, but wasn't as good as I expected it to be.