I've been fooling with this question a lot lately. No question that a medium format transparency or negative outperforms a 35mm or DSLR image. I don't think that is an issue.
When it comes to 35mm film vs. digital, however, I'm convinced the digital provides better image quality than 35mm. That wasn't true a few years ago in the 1 mp era but it is true today in the 10 mp era. I've spent some time viewing transparencies under a loupe, projecting transparencies, scanning transparencies and the digital beats it in my view when it is derived from a 16 bit deep camera raw file. It projects a better image on the screen (using a digital projector) and it makes better prints. There is absolutely no doubt that the digital has better resolution. That isn't opinion. You can see that very clearly. If I'm wrong, I'm sure not very far off.