Originally Posted by
SmartAlec
Grievous wasn't all that different in the movie. Dooku made it very clear to him that he needed surprise, fear and intimidation on his side when fighting Jedi; he needed to confront them when they were already half-beaten, too. He fought Ayla Secura, Ki-adi Mundi and Shaak Ti (twice!) when they were physically exhausted and frightened, but when he faces Mace Windu (who, it seemed, was just getting warmed up), he gets maimed for his trouble.