Am I the only person who liked that battle with Emperor? I was heavily overlvled for all previous bosses and at least the last was challenging. Srsly, what do you expect? You want fight with EMPEROR to be easy? Come on guys. It has to be hard, it's not undoable, it's just pretty hard. Did it in my 3rd try. T7 was useless, i just ignored all the clones spawning and kept DPSing the Emperor. Then he went down pretty easy.
Don't nerf class quest boss fights BioWare. They're not that hard if you understand 'the mechanics' of the fight. Really, it's all about interrupting.