No love for the Witcherverse?
I absolutely love Sopkowski's world. It's small in scope and gritty, but so interesting.

I'm also a big fan of the settings of Wheel of Time (for its magic), Westeros, Avatar the Last Airbender (though I've only watched some of the series), The Black Company, and (of course) Middle Earth.

As you might be able to tell, I'm a little biased in favor of human-centric worlds.