I think the PS3 and Xbox versions are pretty close, but all the others vary greatly. From what I understand, they are all pretty short lasting. I have only played the DS version (worthless!) and the PS2 version, which is pretty good, and made even better by the scarcity of good new PS2 games.

The cutscenes have the exact same dialogue, and even the exact same voice over recordings, but the PS3 and Xbox have nice pre rendered cutscenes (Wii probably has the same?), while the PS2 uses the character models for the cutscenes. Even the DS with its written dialogue seems to have stuck to the same script.