@ dorbin, this is precisely what they said:
If you want to start a flame war, the graphics tend to be sharper on the Xbox 360 when compared to the PS3, which packs a 1.2 GB install that lasts for three minutes. Still, it's not enough to matter in terms of how great this game truly is so don't expect a score difference in terms of reviews. Of course, the PS3 also has the exclusive ability to take on challenges as the Joker, but I'm not including that in this review because the Joker stuff isn't on the game disc -- it's free DLC you get from the PlayStation Store.
They are saying it is barely any difference, and the Joker wins







