General Grievous
I think General Grievous is an excellent character. Some may say he sucks, but I would have to disagree. Some people say he was killed off too quickly- but there is a reason for that. The story needed Obi-Wan to be distracted by a very powerful enemy. He would be off fighting a powerful enemy and be away from Anakin (who needs guidance at his most important moment.) Now who agrees Gen. Grievous is the man?