Dooku vs. Yoda duel was just horrible.
When I 1st saw it - Iwas very impressed, because it kind of looked impressive, but the 2nd time I saw it - it felt weird, like it should not be there. And now it just looks plain lame and unrealistic. PLUS - it's basically just George Lucas showing off what he can do with CGI.
And while it's all cool and everything - it's unnecessary. And what's unnecessary - deserves to be removed.
But that's just my opinion.