For a response to literature, which audience would most likely find an informal writing style appealing? writing class teacherfellow studentscollege review panel

The most appealing audience for an informal writing style are fellow students. 

The reason for this is that fellow students most likely wouldn't mind a more informal style while a college review panel, a writing class, or even a teacher all would most likely mind very much if you wrote something in an informal way, compared to writing it more formally.