For me it is simple, because I have always Practiced and followed Contact sports, so boxing, UFC would be my favorite sports, the reason is that, I have always practiced them and I also know a lot about it, it is very different when a person I just follow him and that's it, I may be a big fan, but basically it helps a lot if I practice the sport , I will always consider those who do a sport that is my favorite, because one always looks for information about the stars, the best athletes and all this That's why that would be my sport, because the others are not to my liking, baseball, basketball is one of the ones I have played but I don't like it, nor do I like to watch it, it seems a little boring to me.
Of course this is a matter of pleasure, football will always be the King of Sport for me, that is something that we must always consider.