As someone that's driven extensively in most major metros around the country... Worst drivers and most aggressive drivers in the nation. The self centered, self righteous dipshits who drive 60 in the left lane are probably the ones pissing off the aggressive ones into a homicidal rage. It's a shit combination of mental retardation that puts everyone else in danger.

The left lane is always the most congested since so many are allergic to keeping right in the pnw. Except around larger interchanges, the right lanes are always more open and easier to navigate.

That line in the left lane around federal way, I don't know if its got a name but it is just a terrible construction job from the lane expansion where the road was created at different heights exactly where you're tires go. So it constantly pulls into the lower section and the traffic beside you.

The HOV lane is the passing lane. This is the only way to get around that selfish left lane camping asshole that speeds up every time they're passable and slows down again every time they're not. Those are the fuck wits that cause all the cacading brake checks in the left lane.