East Coast vs West Coast

I know this has been a long time thing but we have seen it with rappers, with clothes, other kinds of music, actors...and everyone knows there is a thing between the East and West Coasts. I am from the east coast but a friend from the west coast told me that we are behind and start things late. We're not original. I am not gonna bad talk the West Coast...but the east gets it in, if you know what I'm saying. Which coast are you one?