Would it help if instead of holding everyone east all the time, they split the load out to the west, may be more miles initially, but would rather come over the airport high and have a nice descent in over the coast then do donuts out east then get screwed around all the way in? Would it also help considering most the traffic departing goes east / north or south? Would noise be the issue as to why they don't do this, or jt, or both?
They other reason I like the approaches from the west is when the wx is crap it often moves west to east, following it in from the west is a lot nicer sometimes then trying to dodge through it from the east, I guess your further away from alternates though if things don't improve?