My important advice for how to make future champ select better

On PBE you can choose your 1st, 2nd and 5th preferred position. 5th is like a selector for "I don't want that position".

A better idea would be to allow choosing your 1st, 2nd, 3rd, 4th and 5th preferred position. This gives more freedom. Please upvote so Riot sees this, because this will make things better. Thanks :D