If you believe one format is vastly superior to another, then use the one you prefer but at least try to avoid the most used subjectivist reasons for the preference:
1. I know what I hear and you can't tell me otherwise.
2. Your gear is not 'resolving' enough, otherwise you would clearly hear what I hear.
3. My wife/girlfriend/mother/brother/etc that aren't even into music can clearly hear it too and why would they lie?
Those are the most common and they ring hollow because it means one is not even open to the possibility that just maybe their ears could be fooling them due to psychological bias (ie you WANT to believe it is inferior, therefore it will be). There is a lot of evidence that that is exactly the case the majority of the time.