This question is asked all the time. To be frank we can waste time trying to prove one point or another, but what is the point?
I have another question: "Is gold money or property?" I think it is both. And with bitcoin is the same.
BTC can be classified as commodity, currency, money - and in fact is - by various government or financial institutions in the US.
You want to know some more about money vs. currency debate? This video is for you - Money vs Currency - Hidden Secrets Of Money Ep 1 - Mike Maloney:
https://www.youtube.com/watch?v=DyV0OfU3-FU