the Trully Mighty Avengers
So you are Captain America and you are preparing an avengers team to face the biggest threat the Earth has ever faced.
You figure out a team of 7 would be apropriate for the mission but you have to choose the members in order to have the most powerful, versatile and overall formidable Avegers team.
Limitation: only characters that were once Avengers are available.
Which 7 do you choose?