God bless Christopher Lee, a damn fine wizard and Sith Lord. You can say the acting in Episode II is awful, and you'd be correct, but it's not on account of Mr. Lee's performance.
I don't blame any of the actors for how awful that movie was (even Hayden Christensen, though his acting was easily worst of all the main actors). I don't think Daniel Day-Lewis could have delivered the "I don't like sand..." line and have it seem natural.