Unlike Final Fantasy XIII, Final Fantasy XIII-2 looks near-identical when compared across PlayStation 3 and Xbox 360. That is, according to a comparison from Japanese games blog PS360, who are known for its multiplatform game match-ups.
According to the blogger, the PlayStation 3 framerate was better on average, the FMV on 360 is overcompressed, and the in-game graphics have only slight difference.
Get the screenshot comparisons below. An analysis video can be seen above.