Man too many. I will also mention Gilgamesh and Deathgaze. Orthros was pretty fun, the Behemoth near Mt. Burimasce was also cool cause I liked how it tied up the story about the Refugees. The Ba'Gamman fight was swanky and same with the Shadowseer. The Pyrolaster was a nasty devil and fun to fight. I also have to mention the infamous Carrot mission which has been a staple of the Ivalice titles since Final fantasy Tactics. I may need to re-read the XII guide to remember them all but I loved most of them.