Why so much blaming the messenger? Yes your front line supervisor tells you your ranking but they didn’t design the system and hate it as much as you do. If you haven’t figured out what it takes to rank well and aren’t doing it your supervisor can’t help you.
If you have a HiPo supervisor your ranking will be artificially high that year as they don’t want HiPos to have to share bad news with their reports so they are protected by being allowed to rank their team high.