“Either Kevin Costner or Russell Crowe is your father (from birth). Which one do you pick?”
I don't know about the personalities of either man, but the just based on the movies each is in I think I have more similar tastes and sensibilities to Crowe. Also Crowe is perhaps a bit more successful, which has more tangible monetary rewards. With regard to who would be the better father, it's a toss up. They both seem like stern yet compassionate men who would encourage success from their children. At no slight to my own father, they both seem fine choices.