I'm liking this show more, and I've been pondering the blasphemous possibility that it's because of Chloe's absence.
As a casual viewer of the series in the past I always liked Allison. But the actual character of Chloe has been written very inconsistent. She has been either spouting awkward plot exposition or playing out whatever random gimmick the writers had saddled her with. Like being a meteor freak or being possessed by Brainiac , or whatever.
Her absence has certainly simplified things.