Earlier, I read on another forum about what people thought was the sport that required the most skill. Obviously a lot of people disagreed with each other and gave their own reasons why such as "just look at x sport!". When I really thought about the answer, I was caught in between a couple sports such as baseball, hockey, soccer, etc.
My question is besides having played all the sports to answer the question, what are some valid ways to actually prove which sport takes the most skill? As in, if you were on the forum, what indicators would you use to prove your answer is the most correct?
I thought about using how hard the learning curve is, the difference between pro players and the average player, or how many pro players there are in each sport but even then, I couldn't truly justify using it as fool-proof evidence.
Edit: I also know that each sport requires a different set of skill but the forum was speaking in a general overall sense as to which sport was hardest to play and excel at.