This is one of my favorite scenes in the entire saga. The culmination of Palpatine's master plan. Is it just me or can you actually hear flashes of the "demonic" voice he has after killing Mace? The Chancellor's Office set was really cool, IMO. There was a certain creepiness to it, with the statues, battle relief, and the large black urns (one of which, according to the EU, held the ashes of Darth Plagueis). Of course, John Williams' ethereal haunting score helps a lot. Palpatine's facial expressions reveal a lot about him. He thrives on anger and hatred, just look at his face when he says "It gives you focus, makes you stronger." This scene, along with the opera house house conversation, is just awesome. Pure gold. ROTS really was genius. If the other two prequels were just as good or relatively close, it would have been an amazing series of movies. I think this scene showcases some of the best acting Hayden did in the two movies he was in as well.