It all works so well and is grounded enough to carry the story and the audience through an unbelievable ride. Seeing them blend together in Avengers and the sparks that resulted is an extra special treat. The Iron Man trilogy factored in Tony Stark's complete dramatic arc, character flaws and all. Winter Soldier delivered conspiracy thrills. I enjoyed the others films quite a bit but they all delivered something different. What makes it extra special is following this film after all the other solo efforts from each character. Again, they managed to deliver a remarkable cool factor. The last time I enjoyed a movie this much was the last time these characters assembled. This movie works on so many levels and makes you draw on absolutely all of your emotions.
What's the old saying? 'Talent hits a target no one else can hit Genius hits a target no one else can see.' Well, Joss Whedon is officially a genius and the talent of this cast was evident in every scene.