Little brother is a a**hole?

I'm 14 and his older brother and my little brother such a fuc**ing Prick! He's always mocking me and threatening me with weapons he's hit me with a baseball bat! He's 12 and he still has to have my dad sleep with him he is selfish works me to death! Embarres me in front of my friends He cusses way to much and always pisses my parents off and the worst thing is he gets everything! Clothes! games! shoes! Hats! He gets more girls then I do and I'm better looking and in better shape then he is! I havent got a new shirt in 3 months he just got a shirt a week ago and got a new shirt today! He's lazy! He has all the athletic and social gifts! Y would an a**hole like this be blessed like that!? And I'm the nicest most tolerant guy in the family and I get nothing! If I ask for a hat my dad says Not right now if he asks he says ok I also notice that my dad is more like my little bro he has all the athletics social stuff and looks exactly like him is it that my dad likes my brother more?! What do I do? It's like living with Satan!!!!! >_<