Before going off on a rant about a topic you are passionate about, you always want to first inform your audience of what you are talking about. In this case, I am informing you of what video games actually are and why we play these games.
Once you have informed the audience of the topics in which you are talking about, you must then address the matter you are talking about. In this case, I am addressing the continuous conflict between non-gamers and gamers, video games are bad and video games are good.
Once you have informed your audience, and addressed the matter, then you must explain yourself. Why should the audience listen to you, and what cold, hard, evidence do you have to prove your point? In this case, I am taking the evidence collected and splitting it into multiple sections based on its content, to show the diverse evidence collected.