For why I dislike WoW, Warcraft as a thing is pretty much Generic Western Fantasy. Suffice to say, I find it hard to find interest in those settings - I find Lord of the Rings boring, I find Forgotten Realms generally boring, and Warcraft is only about a shade away. And for a genre where you're supposed to dive in and immerse yourself in the world for days worth of time, a setting I'm not interested in means a game I'm not interested in.