Mr Light wrote:
The reason to build up the Azog character is to have an actual leader of the Orcs in the Battle of Five Armies, rather than some random captain. Just like they built up that yellow deformed Orc captain in ROTK. In a book you can just fight a wave of enemies, but in a visual medium you need a recognizable leader to defeat to signify the victory.
I'm kinda surprised by all the Azog criticism. He may not be in the book, but he's still an absolutely badass
villain with an awesome design, and something I think the movie really needed.