I agree with @The Mad Panda Recent films have the advantage of the emotion of fans, even more in a place like this, where many people are many times blinded with their favorite sagas (myself included). Right now there is a feeling of absolute love to Black Panther, and the hype around Infinity War can make to include it on the list. I do not say that those are or will be superb films, but I think that the time perspective is important to make this kind of lists.
Civil War was over Winter Soldier in the last list. We will check this year if Civil War is one of the best films ever or if initial emotion has gone. I would bet on Winter Soldier finishing in a better place than Civil War.