Original Thrawn i don’t like Disney Thrawn. Even when being written by Zahn. Because he was only interesting in contrast to Mara Jade and Post ROTJ heroic Luke Skywalker. And Talon Karrde. Kind of boring on his own.
Apart from a hatred of Star Wars Rebels in general, I was particularly incensed by how Thrawn was outsmarted by some whiny kid in the series finale.