This question is a measure of your enthusiasm and passion for the field; it serves as a pretty good ice breaker or an en passant between questions. Really about the only thing you don’t want to say is that you don’t have any sort of feeling for data.
I feel that data is king. If you just think about it at a sensory level, data propels everything we do. We take sensory input such as sight, taste, sound, smell, or touch, and we convert that data into actionable insights: only we do it so fast we don’t even realize. But that’s exactly what we do. I’m just the weird type of person who stops to think about the sources of that data and wants to learn what more I can glean from data and how I can use it both more efficiently and effectively.