The Unknown Soldier and Iron Man
Upon repeat viewings of Avengers: Age of Ultron, it's clear that Tony Stark's ego is the true villain of the movie.  He acts pretty reckless throughout and it will be interesting to see where the Russo Brothers take the character in Captain America: Civil War.  If they are taking sides, right now it is hard to root for Iron Man, hopefully he will be redeemed a little by the movie's end.

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