Is it normal that there are so many questions asking if things are normal? So what if it is normal or not. You are the one facing and working with your boss. Not me nor anyone else.
This kind of poll is really pointless and we are seeing more such polls everytime. What has and will it achieve?
Favoritism can be subjective too. No matter how impartial or profession managers try to be, some of the staff can still perceive it differently. Anyway, its human to have preferences. As professional as one wants to be, we are all affected by our perceptions and preferences.