I bet on soccer, basketball, tennis and rugby sometimes, in order of preference. Why doesn't football make you nervous? i get very nervous when betting on any kind of sport and so I prefer to keep myself busy while the games go on.
I have realized that most people bet on the sport that they have an interest in. I used to play soccer in my younger days and I have a lot of knowledge about the rules and regulations therein. I either bet on soccer or tennis most of the time but I have experienced more success on the former.