This is an interesting read in that there are about five Hive in every HBD, so, the rewards in the top 100 in HBD, although many of the same names are there, are quite different.
I would be interested, if and only if it is not too much work, to see the top 10-100 rewarders, because that overlays consistency of use with those users having good rewards to share and also engaging enough with their commenters to remember to upvote them.
That's an interesting idea and it would assume to shift the stats from liquid rewards to comments upvotes for posts where CR was enabled. It would be harder to implement, but it is food for thought. I will think about it.