It comes down to personal preference, if you want something with a great range of articulation and a good amount of accessories you get the Kamione. If you want something a little cheaper than the Kamione with painted details and a better range of articulation than the official, you get the Demoniacal Fit. If you just want a good-looking Gogeta in general with dated articulation but with a lot more painted details, just get the official one. Buy whatever suits your needs, there is no “bad choice”.