In the past week, both Activision Blizzard (Nasdaq: ATVI) and Electronic Arts (Nasdaq: ERTS) have reported earnings and beaten analyst estimates. A focal point for both companies is the success of their massively multiplayer online (MMO) games World of Warcraft and Star Wars: The Old Republic, respectively. If successful, these franchises can drive profits for a decade or more. World of Warcraft is more than 7 years old and the up-until-now undisputed king of the MMO hill. In the following video, we'll take a look the pros and cons of each franchise and ask whether Star Wars: The Old Republic be a Warcraft killer?

David Forrest owns shares of no companies listed above. The Motley Fool owns shares of and has written calls on Activision Blizzard. Motley Fool newsletter services have recommended buying shares of Nintendo and Activision Blizzard and creating a synthetic long position in Activision Blizzard. Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.