Actually not all gamblers are addicted in the first place which is a common misconception of many people. Then, addiction is different from favoritism because addiction is playing in a sense out of control in which he plays in no moderation and like treating gambling as a part of his life like he cannot barely live without him playing gambling. While on the other side, favoritism is playing in proper moderation in which even he have a favorite game he plays, he can stand on his own playing it on the right frequency, it is just that game is what he plays all over again at different time frames. Well, they might be link to each other if favoritism for a game goes out of control which makes it turn out into addiction. That is why whenever I play into the online casino I am currently into, I keep in mind of having my control on the favorite games I play from the variety of games they have on it so I won't come into an end of me getting addicted into the games i usually play.