G2 Devastator would be more appealing as I never understood why a group of construction vehicles were lime green and purple, as opposed to yellow or orange like real life construction vehicles. On the other hand G2 Superion is taking a realistic set of colour schemes and making them weird, so seems less appealing.

Against that, "realistic" colour schemes are BOOOOORRRRING, so if this ends up being the Oz Comicon exclusive and I can afford it at the time, I may yet get it. But it's not something I'm going to go out of my way to hunt down.