Biff and happy.. my first impressions

My first impression of Biff is that he takes after his father but is desperate to escape this, they both share the same dreams and aspirations, however are burdened with their delusions. My first impression of Happy is that he is unhappy and discontented with his life and feels in the shadow of his brother and has to over compensate by making himself feel superior, e.g. when he sleeps with a married woman it makes him feel as though he is better than her husband