College Paper... Poker: Luck or Skill

I am writing a paper for my english class, a persuasive research paper debating whether or not Poker is luck or skill. I believe it to be a combination of both, but I would like your opinions considering you are all much smarter than myself. Could to give me some factors that help prove how poker is more luck or skill based. All help is greatly appreciated. Thanks [img]/images/graemlins/smile.gif[/img]