I'd buy the PS2 version in a second when I'm done with my current list of games. I would also buy the X-Box version for the graphics, extra downloadable levels and to see where the PS2 version changed the levels.
The Cube version is last because it only has like 1 new weapon and the GBA hookup which is fucking cool as hell especially with the SP but it doesn't have the extra level and stuff so meh to that.
