Do you have any favourite Piano Chords?
That is obviously not a question you are going to get asked everyday but that doesn't mean it isn't a valid question. Piano Chords are all inherently different due to their harmonic strucutures, their varying resonating frequencies and their timbre changes due to their pitch.
So What? I hear you ask. Well, piano chords have long been associate with different moods. For example, B Major is seen as one of the most powerful piano chords available whereas D minor is seen as one of the weaker ones.
At first, most pianists will not be able to provide you with a proper answer to the opening question chances are, the question will stick in their head and within a few days it is quite normal for people to return to the person who first asked them about having favourite piano chords and will tell them that they have been experimentin on the piano and have now chosen several piano chords of their own and are able to explain what different charateristics each has.