Don't need an argument. The Congressional is easily the most powerful, they can Impeach an remove any member of the Federal Government, including the POTUS and any member of SCOTUS. They can declare war, levy taxes and make law. They can even start the process of changing the Constitution, in which the Executive and Judicial Branch has almost no part.
The Executive carries out the wishes of Congress through its Police Power and, if necessary, its Military power. The Executive controls the Police and the Military.
The Judicial Branch is supposed to mediate disagreements between Congress and the Executive, among other routine, mundane duties. But that doesn't aeem to be good enough for them. They are, and have been since 1804, trying to usurp power not awarded them in the Constitution.
They are not 'co-equal' (a juvenile term, at best), they serve an equally important function in government, but that is far from being 'co-equal'. Not even close.
And they have gotten out of control. Just like the executive branch did for jusr over 100 years. Abraham Lincoln was the first of the "Imperial" Presidents but FDR was the worst. Then, Nixon came along and got slapped down for doing what every president before him did. He just happened to be sitting in the Catbird Seat when Congress got tired of the Executive Branch's bullshit.
Now, it is past time, WAY past time, We The People slapped the Judicial Branch back into reality. They are over-reaching and that is what this thread is about.
Congress answers to its local constituents, POTUS answers to ALL The People and the Judicial answers to -- No one.
That needs to change or they need to start acting like adults and stop inserting their personal biases into their rulings.
I suspect it won't be easy. But it has to happen or our Republic (yes, we are a Republic, the Constitution says so) is doomed