Everlong,
No question - you Dad's behavior sucks and it is harmful to you, even if he does like Dylan. There is no excuse. I had two alcoholic parents, plus a few uncles. I hated and feared my father when he was drunk, and my mother just drank to withdraw from the world.
So what to do? You didn't cause your Dad's drinking but you can't cure it either. That is his road to travel.
You are in your parents' house until you can find a way to leave. You can take GiveLove's advice and make a plan (where to go, what to do, who to go to). Just running away won't help.
There are adults you can trust and talk to. I have worked with a lot of teachers and they really really hate it when they can see a kid suffering from a rotten home life, but you HAVE to go them first. Even the toughest coldest ones will go to to great lengths to listen and help out a kid IF that kid asks for help. There may be helpful relatives too.
Ala-teen is a GREAT resource. I wish it was around when I grew up.