I think people like him so much because he was either ignored or rejected by so many college and professional teams and now is making game-winning plays. They like that "Geez, if things can turn out so well for him after his beginning, who knows how things can turn out for me" feeling. Granted, the guy did get into Harvard on his academic merits, so he's not just a dumb jock, but he's overcome some big odds to enjoy his current success.