i am sure we all have our own favorite sports to watch or bet on some sports a lot more popular than others and are easier to bet on due to the amount of gamblers and bookmakers willing to set up odds for the specific match
but which one do you think is better? focusing on one sport to bet on or have multiple sports to bet on? would betting on multiple sports be too much work and could potentially lead to more losses or could it lead to more profit?
I can't bet on what I know nothing about, because it will be confusing and there is no way you will have full assurance on it, you will definitely doubt it. At that point You are at risk of losing your money. I personally can't involve myself in something that am doubting, if you have knowledge about something it will reduce uncertainty and doubt.
Betting for a club that you know and you also believe in the player's ability will be better, rather than betting for another sport or club that you don't understand well. Because you will be familiar with the team's weaknesses, strengths and their capabilities.