I'm kind of split on the issue, but will have to say that for the purposes of Civil War, I am on Captain America's side. On one hand, I believe that anonymity breeds chaos. These people can do whatever they want, and while that works in the comic world where these super-powered beings rarely abuse their powers, in the real world people are not that black-and-white. I would love to have superpowers, but ultimately realize that I do not because I could never be 100% responsible with them. No one could. So the idea of superpowered humans running around unchecked is just not feasible to me. On the other hand, government beauracracy solves nothing. While registering superheroes and holding them accountable for their actions might at first lead to some kind of...I don't know, sanity; ultimately the shackles of politics would fall on the superhero gig and beauracracy would overcome the sanity. A situation necessitating quick action might come up, but instead of leaping into action, the superheroes would have to have a meeting to plan a meeting discussing how to handle the situation. After an arrest, superheroes would have to escort the criminals to the jail so they could fill out reports and arrest paperwork. Did Spider-Man read you your Miranda Rights? No? Then you're free to go, sir. In the comic book world, there is a balance that would be thrown off by this act. So I guess as far as the Marvel universe goes, I am on Cap's side. In the real world, I would not be as confident. If Mr. Phelps can go bad, anyone can.