High School players are also something like 6 times more likely to play in the MLB (0.5%) than in the NFL (0.08%).
https://www.ncaa.org/sites/default/f...Update2013.pdf
I imagine that the longevity of careers and lack of severe brain injuries also is pretty one-sided.
Then again, 99% will not make either league and even fewer will earn much more than the minimum, so play what you enjoy.