Well... The diplomacy and interface and all that, absolutely amazing. Brilliant job on that.
But it lags slightly on my PC, which majorly detracts from my experience. And it has DLC, which means I instantly dislike the game. And I also miss the 1399 start date. I loved how Europe was fragmented in all these tiny states. Now there is no fractured Netherlands or France, for example.
All in all, I guess I'll be sticking with Divine Wind, if only for the slight lag. But this is an awesome game really; the new ideas, decisions, diplomacy, et cetera, looks cool to me. I'm unsure which map I prefer though; I'm hestiant to say it, but I think Divine Wind looks nicer / crisper / better. But I also (vastly!) prefer the map of Civilization III over IV and V.