Some of my favorite heroes are:
Ed (Fullmetal Alchemist)
Kurosaki Ichigo (Bleach)
InuYasha (InuYasha)
Katsuya Jonouchi "Joey in the english dub and The Anonymous Pharoah and Yugi (Yu-Gi-Oh!)
Naruto (Naruto)
Satoshi-kun "Ash" in the english dub (Pokemon..)
Some of my favorite villians are:
Yamato-san "Cassidy (Pokemon)
Kojiro "James"(Pokemon)
Marik..I suppose when he was considered a villian same for Pegasus both in Yu-Gi-Oh..
Sosuke Aizen (Bleach)