Personally I really feel for people who genuinely say they dont like either catergory, in fact I find it hard to believe that people actually exist without liking ANY music or ANY sport.
Very sad
I personally chose sport in this instance on the basis of single events, more people will watch/support/ and unite watching an event like a world cup finals/ and final, than say a big music event.
I think in this respect sport just edges music in uniting people in a common cause, but both should be loved passionately in life and its a sad loss if you choose to dislike or ignore one of them completely.