No one argues that Oedipus isn't a tragic hero, and yet, he is motivated by selfishness as well. He is engaged in a crusade to safeguard his own power and respectability. They die for this flaw this is what makes the tragedy. Under this definition I feel that Antigone would not compare to Creon. Creon would be the greater tragic hero.
History repeats itself.
He promised Oedipius that he would take care of his daughters and now he's killing one. I think Antigone is a hero because of the values that she died for. I think that Creon was less understanding in Antigone. He acted very similar to oedipus when oedipus accused creon of betraying him. I think that Creon is the tragic hero.