Which part of the game had the best final boss?

I had level 27 the first time, and now it's even higher!
And what did you think of the first boss on Malakor 5: the Giant Stormbeast with a decent-looking maw?:cool:

When I was leveling up a powerful hero, the beast wasn't a problem...
...but the mercenaries on the wild surface of Telos and their turrets really tested my consul's nerves on a difficult difficulty level...