Different stokes.
I like Essos stuff because it's more varied than Westeros in culture and history. Some of the stuff happening there is dull, but the world itself is not.
Well yeah, Westeros is mainly medieval England with some vikings. And with Essos, it's everything else from ancient history renamed. Count me in as one of those guys that don't care at all about his history book. If I wanted interesting history, I look up actual history. I read the series for the characters but at this point I don't expect him to finish it anytime soon so I aint even mad.