My recollection from being here over 10 years has been this:
The Euro would show a solution(good or bad) and was often on its own. The other models(GFS, Ukie, CMC) would all be showing the same thing but at odds with what the Euro shows. Over time the other 3 would slowly come towards the Euro's general idea. The Euro would also adjust towards the other 3 but at a much slower rate and scale. Around 2 days out there would then become a consensus with all the models and they would each have subtle differences
There have been times each model has "won" and others come to its initial solution. But each storm is unique IMO and the +/- of each model helps/hurts it for each one.