I think you should sell Star Lord, because the leather jacket will flake in few years.
you like Iron Man 2 movie more or Iron Man 2 Figures more? i think you should keep the figures you really like, not figures of the movie you like. you like that Red+Silver Ironman behind Whiplash more than MK-I, or you want everything from same movie that is why you kept Ironman 2 not Avengers (30++ figures)?