Team Spidey isn’t an option?
Looking at the debate at a base level, it seems very simple - Do you think that a group of non-elected individuals should be permitted to carry out so called crime fighting activities without any legal sanction to do so and with no oversight? The answer would plainly be no. We have oversight over our police to ensure that they are acting fairly and in the best interests of the state and of the people (not always the same thing), and that any instances of corruption are handled.
If I recall correctly, the old Wildstorm Stormwatch team worked on the basis of a UN mandate. Admittedly that was run by a complete psychotic in Henry Bendix, and eventually segued into The Authority, who seized control of the United States at one point, so perhaps we need to give some serious consideration into what the correct model of regulation should be.
However there is obviously another side to this. Who gets to decide? Who will provide oversight? SHIELD provided oversight originally and was proved to be rife with HYDRA agents. Who will those people be accountable to? How will the system be made transparent to people in the 170 countries.
The introduction of the Sokovia Accords in the film was a knee jerk reaction and there needed to be more debate.
In a real world scenario, i.e. one which isn’t in a big budget summer action movie, this is an issue that would require a great deal of debate. That didn’t happen in the film because it because about finding and/or shooting on sight Bucky.
So I think that Iron Man was right, but only in a very vague way and for the wrong reasons. I think that his heart was in the right place in supporting the Accords. I think that Cap was right to oppose the Accords based on what was put in front of him in the movie.
Spoiler for anyone who hasn’t yet seen the movie:
This all goes out the window when the mission becomes save/shoot Bucky. It all becomes a bit of a battle of egos and I thought that Tony acted selfishly and lead with his ego. But he’s Tony Stark. It’s what he does .