My favourite sport is Horse-Riding, and I like bike-riding too.
I have also done some Karate, (Australian) Football, and Swimming.
I barrack for Carlton Football Club, who won their last premiership in 1995, the year I was born. They will win another premiership some time sooner or later.
If it was real I would of course play Quidditch, in which I barrack for Gryffindor which is Harry Potter's team.