Well they can't always be fighting, right? What I mean is maybe they are going through a bad time. I would suggest that you be patient and hope the best. Keep in mind that there will be a better tommorrow. What I also recommend is that if it really bugs you, go talk to them, and I mean talk to them, no shouting. Be calm and tell them how you feel. Cry if you need to cry.
umm go to the parent that your most comfortable with or the one you like better i guess and then talk to them or sit both of your parents down and say what your feeling and hopefully they will understand, or go to a grandparents house and live there until ur parents figure everything out.