What I loved about Iron Man :
Robert Downey, Jr. *sigh* as the suave, smart Tony Stark.
Humor that was perfectly placed and became part of the action.
The coolest super hero suit ever.
Bad guys that got what was coming to them.
Gwyneth Paltrow playing a smart, light role as Stark's assistant, Pepper Potts. (in kick-ass high heels)
A story that explains the origin of Iron Man and sets up adventures to come.