Here is an idea for how to improve the banning phase
Why not make it a group decision by taking making it similar to how the champion selection process for 1 for all is formatted (everyone votes for a champ and majority wins the ban, if no majority it is random from the choices that were selected). This way everyone at least can have there say in a ban. This would also reduce the chances of your pick intent being banned away from you unless the other members all agree that it isn't a good idea (like a veto system). Also keep the 3 bans (or more) per side.