If it didn't exist, Digimon would've been so much more successful than what it is today, or atleast any franchise that is somewhat comparable to Pokemon. Sayin this, I'd probably be a Digimon fanboy.
Other than that, I'd probably be one of those obsessed CoD players that plays around 7-8 hours everyday. I do play CoD right now, but probably around an hour or two a day.
Another franchise that I'd be obsessed about would be the Dragon Quest games. I have to admit it, I freaking love the DQ games. However, I just feel like there's something to it that once you beat the games, there's nothing to do. Pokemon on the otherhand has competitive battles, shiny pokemon to hunt, and a full pokedex to complete. I mean, Dragon Quest Monsters Joker was kinda like pokemon, where you could battle people over WiFi, but other than that, once you beat it, you're done with the game.
Dragon Quest 9 was the latest DQ game I've played, and there's plenty of quests to do, but most of them involve grottoes, and I'm just farrr to lazy to complete grottoes.