If you were a professional critic, which artists would be a nightmare for you to review?

Without taking into account controversy surrounding the artist, or aggressive fan bases, which artist(s) do you think would be particularly difficult to articulate your opinion on?

We want critics to be objective as possible, but there are some artists that mean so much to us personally that it's hard to be objective when they release mediocre projects.

There are also artists that are so objectively consistent that I imagine it would be hard to write a negative review. Bjork comes to mind. I personally enjoy all of her projects, but if I had a negative experience with one, I feel I would be working extra hard to articulate what I disliked in my review because she consistently checks all the boxes that art critics love. Kind of hard to just slap on a 6/10 and say 'didn't love it' lol