If you could change ONE thing in The Hobbit triology

[Aaron]

What would it be? Because, let's face it, the movies are an appalling mess, raised above mediocrity solely by the practiced hand of its amazing cast.

So, what would you change?
Me myself, I would cut out Azog entirely and focus instead on Bolg. Thorin is not an honorable hero, he loses his virtue as soon as he tastes power. It's a big theme in the story, the moral ambiguity, and Bolg is an important part of that - an Orc avenging his father, and Orcs in general wanting to avenge the Great Goblin. There was so much they could have done with the idea. But instead they played the story as Good vs. Evil, rather than the more complex moral tale Tolkien was telling.