I guess it's time I say my opinion on these sets too.
ROBOT ASSAULT VECHILE: brilliant. I especially like how the cockpit can rush forward. It looks like it can run over any land mech and the guns and lasers would deal with the air mechs. Ryo's mech looks really cool, especially the claws. Those golden fingers will be good for mocing, and it looks like it can pick robots up, fly back to golden city, then torture them for info. the little devvie flyers=cool. these will be really good for battles and they look very fun. Another good thing about this is the minifig count
GOLDEN CITY TOWER: My fav yet. Its really good because of well...everything! We've been waiting for a Hitomi fig for ages, and its here. New face new torso. The actual tower=great. It's got flags, golden katanas, prison cells for robots, (i think)golden and red elements. The mini sonic phantom is really cool, especially the wings. complete with a blunt shooter and two turbines, this is really great for it's size. The colour scheme is really good as well.
HAYATO MECH: My least favourite, but then again very good. The actual mech isn't very good, cos it doesnt have any guns/swords/shields. But the jetpack...It looks as if it could be a space ship for humans. The only bad thing about the jetpack is it should be blue and white like the mech.
Bye!