Got to agree with
@Cheesy, that stuff about Ramsay and his men sabotaging Stannis was woeful writing. It's the sort of typical tv nonsense you wouldn't see in the earlier seasons. Another terrible part of season 5 was Sansa's storyline, particularly that burning-candle-in-a-tower-window scene. Brienne was constantly watching that window but turns away just moments before Sansa finally puts up the candle. Really?
It did have that awesome Hardhome episode but in general the quality dropped alarmingly in season 5.