I would always personally choose the Zimmer theme, especially with Cavill’s Superman on screen. It would be like using The Dark Knight trilogy theme for Michael Keaton in The Flash movie, it just simply doesn’t make sense. Superman is not James Bond. I think the big worry, which I agree with, is that the last time we heard the Williams theme (with Cavill’s face), we were gifted with the garbage that was Josstice League. For many- that music being used with Cavill’s Superman will be synonymous with that interpretation which didn’t treat him with the reverence and dimension that Snyder did throughout his time directing.
My perspective is that the Williams theme is more well known by the average movie goer, and WBD have made the decision to try and get those people as hyped about Cavill’s return as the fans of the Snyder movies. Trying to bridge the divisiveness in a way. I do not like that decision, but I understand it if it’s made by a room of studio executives who search ‘Superman Theme’ and see John Williams’s rendition immediately. The issue, for me, comes into play if many of you are right. That this marks a change in the way Superman is portrayed, making him, in essence- Reeves 2.0. I think that worry permeates everything, and the answer won’t be known until long after this potential post credits scene. I love Cavill’s interpretation so far but, these actors were in Josstice League and Gal was in WW84. Actors can lift a role but what’s on the page will always limit them. I really hope any future Cavill movie isn’t limited, just as he wasn’t in the Snyder movies imo.
Either way, hoping my two pack comes in soon! Many pictures in this thread make them look fantastic.