You all realize this is just EA trying to assert absolute dominance over the human simulator genre, right? What Zynga has done is innovate. They've taken the old concept Maxis came up with and EA milked to death in order to try to improve it. It's clear to me that there's a difference in the games. The graphics on the Zynga version are cleaner, characters are more recognizable, the UI is better designed, and the social features are better executed. It looks like innovation to me. Zynga hasn't stolen any of the assets from The Sims Social. EA's complaint boils down to them claiming copyright on certain colors, isometric grids used to display houses, the concept of appliances, and other facts of human life -- ridiculous!
Of course The Ville and Sims Social will have similarities. As games in the same genre that's what is supposed to happen! There are supposed to be similarities. This is why it can be hard to distinguish Modern Warfare 3 from Battlefield 3, Need For Speed from Ridge Racer, or Medal of Honor from Red Orchestra. I'm not willing to allow EA to claim exclusive ownership over the human simulator genre with their The Sims franchise. I'm also not willing to jump all over Zynga because they've taken established ideas and made them better. Dream Heights did what Tiny Tower did but better, and they both stemmed from Sim Tower. I'm not going to punish someone for innovation. If Zynga can do it better then let them.
It's better for the industry as a whole to fight against EA's copyright claim. Let them compete with Zynga. Don't punish innovation and competition. EA wants to perform an NFL-style lockout against Zynga to keep them out of the human simulator genre -- EA's most profitable business acquisition.