I don't know if it's been mentioned yet, but what about Jaime Lannister and his more than passing resembelance to Luke Skywalker. Just think- Both Blonde, Check! Evil Daddy, Check! Excel in Sword/Sabre play, Check! Have kissed thier sister, Check! Yeah I doubt that GRRM really took Luke lock Stock and Barrel from Lucas, but I thought it was worth mentioning :)