Pop to me is a slightly useless rank. You can find it out fast enough. Plus some people/families dont like to pop bank. The round might not be set up for it. Not the right mix of players in the fam etc.
For EOR rankings i would rather see who had the highest income across all metrics. Also who made the most total across said metrics. Who took the most planets from other families. Who expoed the most.
These would give a better idea of how a family/imdovidual did overall and would also give more insight into wether or not a play may or mat not be good in a specific role.