Also, the character development has reached a level where readers can actually identify characters by their speech, mannerisms and actions. It's the height of realism.
In this book, it's easy to see, analyse and weigh the merits of careful character-building that sacrifices plot acceleration for vivid literary realism, against simple plot progression.
Despite its brilliance, it would be totally unfair to judge other epic fantasy series using WoT as a yardstick. Here, I'd simply say, "other series have done well, but WoT surpasses them all''
Meanwhile, Aes Sedai plotting thickens, serving as a perfect backdrop to the eventual facing off of The Dragon Reborn Rand al'Thor and the Forsaken Sammael.