Banning Vs Not Banning
A suggestion more than anything.
I've ran into a lot of people choosing not to ban lately and I've had those same players complain about champions being OP after another lane or even their own gets fed.
If there's nobody that you feel like needs banned, just ask your team if they have a ban request. It could be someone you didn't think about, or even better, a counter to a champ they're wanting to play that makes their laning phase easier. If they don't answer, I typically ban a champion that makes things more difficult for my adc (I mainly play support).
This small gesture often helps with morale and I've actually been winning more games by helping my team out by banning someone they request.