Eurogamer: "Starting off, the first thing that visibly sticks out is the quality of the artwork on both formats: it's largely identical with very few differences between them. In comparison there were a fair few examples of lower resolution textures and paired back normal maps on the PS3 version of Arkham Asylum, which have now been taken care of. The alpha buffers are also rendered out in the same way on both formats - there's no drop in resolution on the PS3 - with smoke, fire and other effects looking identical.
Overall, the 360 version is indeed the slightly better performer of the two releases - par for the course when it comes to Unreal Engine 3. However, in general gameplay terms the differences count for little: Batman: Arkham City doesn't really rely upon quick, high precision reactions during gameplay - there's a fair amount of leeway in terms of timing when performing moves and context-sensitive actions."