If you are an adult cartoon lover - which one is your favorite? And who is your favorite character? Over the years, my favorites have gone across the board from Simpsons to South Park to King of the Hill to Ren & Stimpy to Family Guy. But my favorite for the past several years has been AMERICAN DAD! Love it! And my favorite character? Roger! He is funny, lovable and awful at the same time!! What and who is yours?