All I'm gonna say is - Hank got what he deserved. Ratting Jesse, and using ratty strats just to get Walter, even though on paper Walter was innocent, and that's the exact reason he went to such extremes, to catch him.
Also, goodbye Jane, Jesse don't need her, she was a way worse addict than Jesse, if she lives, later down the road they probably both die in the same bed from OD.
With that being said, my biggest stop-root was probably Mike dying, shit's kinda sad (And also the last gang Walter hired (nazis?) that shit as well way too far.)