Which version of Batman: Arkham Asylum should I buy?

[Masakari]

According to Digital Foundry @ Eurogamer, 360 version looks better: has 2x MSAA, SSAO, motion blur, better lighting, and less screen tearing. But the differences are pretty slight, so these comparisons are a bit pointless.

Really curious on the PC version though - better textures, higher res, physx...