This not about Civil War (cinematic or print). This is about the entire published history of The Avengers.
Cap and Iron Man have been on the team together many times. They have also each been members when the other was not. In my mind, The Avengers have been different when one is there and the other has not. Do you see differences? If so, what are they?
To be grusomely clear this is not a thread where Endgame spoilers belong . This is about the comics Avengers.
So. How are Tony's Avengers different than Steve's?