Voting rules: Choose the blood group you think is the most popular!
This is a community-based ranking of the most popular blood group in the UK. We do our best to provide fair voting, but it is not intended to be exhaustive. So if you notice something or blood group is missing, feel free to help improve the ranking!
A participant may cast an up or down vote for each blood group once every 24 hours. The rank of each blood group is then calculated from the weighted sum of all up and down votes.