Continuity mistake: The emperor sits up as he's using force lightning on Mace then a few seconds later he sits up again.
Continuity mistake: As Palpatine stands to face the Jedi, his right hand starts to turn around for his lightsaber. In the close up, his hand turns around again.
Continuity mistake: During the fight scene between Obi-Wan and Grievous, Grievous has the lower half of his left hand and upper half of his right hand severed during the saber duel. However, as he gets into his vehicle, the damage done to his right hand reverses itself and he is missing the lower half instead.
Answer: Maybe, but he is overconfident and impulsive. He has also let rage blind him. Anakin is probably the better fighter of the two, but Obi-Wan kept his cool and analyzed as he fought while Anakin fought angrily and ultimately foolishly which left an opening for Obi-Wan to maim him. It's said in almost every episode of Star Wars not to let fear and anger cloud your judgement. Here are the results.
Grumpy Scot