DigitalFoundry
The differences on console - where we do see them - appear to be relatively slight. Post-process anti-aliasing is utilised on both versions in order to resolve the obvious jaggies that impacted the previous Frostbite titles, but we see two different implementations, each suited to the relative strengths of the platform. PlayStation 3 implements MLAA - a technology that actively seeks out jaggies and applies smoothing where appropriate. DICE hasn't confirmed what's being used on Xbox 360, but it certainly looks very much like NVIDIA's FXAA..
The good news is that overall frame-rate is remarkably consistent in these scenes the only real differentiating factor comes down to the screen-tear, where we see that some scenes operate with an advantage on Xbox 360, while others clearly perform better on the PlayStation 3 - as good a sign as any that DICE has aggressively optimised for the strengths of each platform.
http://www.eurogamer.net/articles/digitalfoundry-face-off-battlefield-3
Good news for everyone?