Both framings have been argued among the linguistic community -- it's like saying "Allah the Great (One)", but only one is mainly accepted one since what I provided defines Allah with a title (as if to imply there are other "Allahs", which there aren't of course). Also, Al-Akhbar can't be used by itself was my main point-- it's not an attribute. And cool that you know Arabic as well (I'm a translator).