European here, American date format is better.
That's basically the European format.
Thus, month/date/years is more "ergonomic" or "user friendly," if one is equally used to either format.
A similar example is time. The hour is usually what you care about most, followed by the minutes, with seconds most often being irrelevant. Fortunately, that's how everyone writes time.
As far as date formats go, apart from the ISO format, "21 Jul 2020" is definitely my favorite and always unambiguous. The only downside is that it's language dependent.