Lego Batman 2

I'm stoked for the new Lego Batman game. I'm not really a big fan of the past Lego games, but this one looks amazing. This will be the first Lego game where the characters actually talk. So that's a pretty big deal. However I'm torn between which version of the game to purchase. The PS3 and 360 versions have an open world to explore (also a first for a Lego game). While the 3DS version has its own special Justice League aspect. Either way I'm excited.