Right, I get that there's a kind of supernatural war of some sort brewing in the distance. Winter is coming, and with it, is coming the Others, who are a bit of a problem. There's other pieces on this cosmic chessboard - Azor Ahai and his Lightbringer sword, whatever the hell Bran is becoming - and they're sure to have their supernatural war.
That's nice. And maybe it'll be really important in the next three books. But the extant four books toys endlessly with the issue of the successor to Robert Baratehon, from the summer knights of Renly to Arianne's nipped-in-the-bud stab at Queen Myrcella.
On the other hand the spectre of a return to the age of a divided Westeros, with the Kings of the North and the Seastone Chair. There's Whispering Wood and the Red Wedding and the fall of Winterfell and all the chapters that take place in King's Landing and most of the arcs of Eddard, Jaime, Tyrion, Cersei, Davos, etc. etc. etc.
And on the other side of the world is the last Targaryen claimant to the throne, spending a good long time evolving into a queen. This seems to have some role in the prophecies and whatnot, but that's a handful of hints stacked against the three books of Daenerys and her would-be court.
These books are about the thrones. The Iron Throne, the Seastone Chair, the whole shebang (indeed, the plural of 'thrones' is more applicable to the books after the first one). They may also be about this supernatural war that's coming, but in no sense is that a bigger concern in the novels to date then the politicking of the Seven Kingdoms - the latter dwarfs the former.
