Catherine's box art is different for both the 360 and PS3 version. Regardless of platform, you can judge which you prefer by asking yourself which part of the female anatomy you prefer more:
What strikes me about this box art is how sexualised it is. Yes you see attractive female characters on the front of a box before, but have they ever been so eroticised as they are here? If I had to pick, it would probably by the PS3 version, purely because of the Catherine logo placement. It's exactly in the place where my eyes begin to wander. Genius