I'm pretty sure the title king speaks for itselfDISCLAIMER: I am primarily an Alliance player and this bugs me.
I don't know if this has been posted before but it kind of bugs me that Anduin automatically becomes "High King" of the Alliance. He is the prince of the humans of Stormwind, but not the prince of everyone else. I feel like Varian's appointment as leader of the Alliance was warranted by his experience and prowess as a strategist and skilled warrior. Anduin barely has any experience leading, and that is paltry when compared to the likes of Velen and Tryande who have had thousands of years of experience, and wisdom, and, well a lot of things that Anduin doesn't have. He shouldn't be the leader of the Alliance. I see people complaining about Slyvanas' appointment by Vol'Jin as the new leader of the Horde and to me that makes more sense than Anduin becoming the leader of the Alliance just because he was the son of Varian. The Alliance is, well, an alliance, not a monarchy. There shouldn't have been some dynastic transfer of power.
/endrant