Quote Originally Posted by SuspectimusPrime View Post
From memory, the major differences would be the lack of a second head, not-Hook's crane being non-removable, and also the forearms being shorter. I don't recall the reviewers commenting on a major difference in its plastic quality.
Don't forget the yellow deco, which is more RL but less G1 accurate.

One of the big changes was the crane arm on Hook/Mobile Crane. It was changed in Green Giant to make it removable, which helps in robot mode as you can tab it onto the back, but also to allow it to fold in half when extended which is a big advantage in combined mode as it allows the crane arm to hang down vertically instead of sticking straight out. A lot of people seem to hate the second head but I prefer it over the original. To each, their own, and you can't fault MT for giving options. There were a few modifications to the parts for some of the bots as well but I understand that they were integrated into the later release yellow giant sets.

Here are my thoughts on the Giant v Hercules debate, you can find 1000+ pages of arguing on TFW if you care enough. I think Hercules has the advantage of being still widely available and is now cheaper than Giant, but I'm still not a fan of the TFC size or aesthetic and the combiner port ratchet durability is still suspect.

Also wasn't aware they'd changed the arms for the Green Giant release. The Green arms are still a bit on the short side as it is, so probably a good thing they were lengthened.