He did not lost it, Palpy pushed it from his hand with a Force Lightning. Besides, the Emperor in DE comic books were stronger than in ROTS, although sillier.
CD
Count DookuRestricted
Sidious is one of the greatest Sith Lords? He would be eaten alive by any of the Original Sith.
TV
tommy vercettiRestricted
sidious wins this considering we,re talking about the dark empire