User blog comment:TwilightReaderFan/Season 5 Finale/@comment-7600752-20151001173312/@comment-5014364-20151001192104

Oh I don't consider it the weakest inherently because it was less faithful.

But being less faithful did lead to several weaker storylines. Well, for the North and Dorne storylines, the others were very good (albeit much condensed, they do stand on their own in isolation from knowledge of the source material. Dorne on the other hand...)