I agree with Phoinix on all counts. I don't really want future police with flying cars. I want deep space explorers. I also really love the Star Justice set. Now, these sets are very similar to Star Justice and Space Skulls in way: More traditional Space designs for the Police, and wacky designs for the Bad Guys. I just think the Star Justice designs are way cooler than the design for the particular Space Police III ship we see in the picture.
Also, while I love the Star Justice set, I didn't really care for the Space Skulls. Just give me two factions of space explorers and let them have skirmishes. I don't need any weird comic-book bad guys. I think Blacktron were the perfect "bad guys," because they aren't weird. They look really cool, but menacing. And it's just as well to pretend the are persecuted rebels, good guys in black fighting against the oppressive, fascist Space Police.