To be honest, I think almost ALL the major OT characters are made more powerful than they should be, simply because it's George Lucas's original characters, especially Luke, Vader/Anakin, and Sidious, a lot of people take Lucas's word as law, personally, I don't because the Star Wars Universe, thanks to all the EU has gone far beyond EU, and if you go by Lucas's words, I'm pretty sure he said Palpatine died on Endor, he never had any clones, etc. GL doesn't care about EU, he wants the OT characters to be the most powerful in Star Wars, because he came up with the idea of them, at the very beginning of Star wars.