Am not really a full time gambler but I'm a player, and if gamblers are addicted they'll have some favorite games to play, then what about the player who has also their favorite games can we really tell that they're also addicted to that certain game?
I think anyone can have their own favorite game based on their taste or whether they're comfortable about a certain game... but if you have a favorite game, for me I think they're are not considered as an addicted to a certain game because it's their favorite maybe because they're comfortable to it or they're good about it that's why they consider it as their favorite.
For me Addicted to a certain game is when you're out of control... wherein you can't control yourself to play your favorite game or can't limit yourself to play. All of this are according to my own perspective and perception.