Draft pick role selection idea

I think everyone can agree that when preferred roles came in we all loved it. However, why not accommodate to all the indecisive people out there, or people who want to "fill" but not support and make it even more advanced and allow players to split a percentage of prefferedness among all of the lanes. For example: my best lane is top, mid would be 2nd, and jungle 3rd, support and then adc. So you'd split 30% 25% 20% 15% and 10% accordingly. Or even if we were just able to pick more than two roles that would also be nice. The thing is, Id probably always check fill if it were not for the 99% chance that you always get support, so this would be my fix for that. thoughts?