Of the five senses, which one is most important?

Sound requires an atmosphere, and it's prone to much lower range limits & interference than sight. You can't "hear" a football game, because there's too much random crowd noise. You can't hear in space, cause there's no air.

IMO, if you're taking a blind person to a football game, you would just cause unnecessary stresses on that person. Trying to explain the details of a football game to a blind person from birth can be a huge task.

We dont normally train our senses and in fact, we're abusing it too often. Its important to have certain syncronizations, eg eye-hand coordination, which increases the gray area of our brain. An example of this is a juggler. Footballers have pretty good eye-leg coords.

A blind person would tune their ears to recognize beyond what we normally bothered to. A good marjong player would "feel" their drawing dice, like how blind players read.