What are the codes that never expire on marvel Super Hero Squad online?
The best best MARVEL Comics Super hero squad is THE AVENGERS, and the best DC Comics super hero squad is THE JUSTICE LEAGUE. Out of the two, I would see that more people would go with MARVEL Comics because the squad has better super heroes like Iron-Man, Spider-Man, Captain America, Wolverine, Spider-Woman, and Thor (There are many more super heroes in the squad, but I'm just listing a few). That is your answer. :)