Civil war is potentially a better movie until the grinding, final, ridiculous, not as believable, or as fun to watch, as the makers clearly thought it would be, never ending and improbable fight scene, where 2 men not made of metal, try to and do, "punch out" an Iron man.
That said 10/10 for winter soldier is seriously ott, in the fullness of time, it's not likely to be seen as good or better, than All the presidents men.
If you score it based on the improvement over the first captain movie (first avenger) then it has legs, but it's no better/but at least different to, "The avengers".
Lets just say the entire MCU at this point, is somewhere around the 8/10s as are the better of the DC movies, including Nolan's.