Merry Christmas Jeff.
Uhh... I dunno... that IS a hard one.
Majin Buu turned good after mercilessly killing millions (Yes, the Earth of DBZ has millions of people).
Major Uluube wasn't revealed to be the big baddie until the last episodes, and Kyoji never really was the real bad guy.
Hamtaro could have been the villain of Toonami, along with the K-Beast.
Zoids:CC... I haven't really followed much.
Megatron and Skeletor aren't the smartest....