Cookies would be more persuasive. The pamphlets I get try to evoke emotion but fail. I would better remember a cookie.
@Lucas: a pamphlet can't save my soul either if it hits the trash before my heart.
@Fireball: Cookies cause SALIvation.
Usually, but arguments are more persuasive than most other things (advertisements).
Debates are just multiple people joining in on logical arguments. They help me.