The footage shown in the videos Coulson gave Tony, and the news report Tony saw at the end of Iron Man 2, were different, judging by the angles. No student was close enough to have videotaped the stuff Coulson gave him (and Cap, for that matter), whereas the student video showed nothing of the actual Hulk.
As for Captain America, good points.
QuoteLoki wasn't about taking out leaders, he was about putting on a show and manipulating his way to the top.
In that case, the fact he simply didn't just teleport himself into the white house and take control of the President Baffles me. Or someone else of high rank to gain control of possible military enemies.
QuoteWith The Avengers destroyed in front of an audience, he had free reign.
Of a small part of the world. And even then, I sincerely doubt everyone would go "Alright, he's our leader" just like that, after six people got beaten.
I'm not trying to take anything away from the awesome movie, by the way. I just think Loki chose the most idiotic route possible.