So never mind the fact that the emperor himself is OP. His clones do not really do any damage, but the emperor himself has a slew of attacks that can carve your health off in 2 seconds. He has a force push ability that is pretty much an instant kill, and the battle itself is unfair.
Then there is your companion. Being forces to take T7, i can see why the developers wanted to do this. They were going for the luke skywalker/R2-D2 companionship that was in the movies. However, sometimes, what you invision conceptually and what happens in reality in your game, do not mix. We are forced to take the gimp droid T7 with us into this fight.
Now my T7 is moderately geared. However in a class that focuses on either tanking or dps, bringing along a tank, or furthermore a gimp dps, isn't much of a help. For a sentinel dps, bringing T7 as a tank might be helpful, but for the people who rolled jedi guardians and are tank, completely useless.
Bioware, i love your games. But you're getting a thumbs down on this one. The mechanics of this entire encounter need to be rethought. Because this is a real problem.