Anduin- He’s an insufferable, idealistic idiot backed by the plot and story-writers.
Jaina- Literal walking Deus Ex Machina. A textbook example of a poorly written character. Is also an insufferable, flip-flopping idiot.
Nathanos- I hate Nathanos for the same reason I hated Varian Wrynn. He suddenly shows up out of the blue, and is over-saturated in order to make up for the lack of spotlight or build-up. And Blizzard expects you to root for him solely because he’s the same faction as you. I hope he’s not the next Forsaken leader.
Talanji- Jaina Jr. Just less of a Mary Sue.