Sage is best girl by far. I like Jill unlike many here but she doesn't really come close to Sage and feels too much like some fairy tale character (too cheesy).
If Maya is DPC's favourite he sure isn't showing it in most of the episodes (the scene at the party in the latest episode was pretty good but that's about it). She is not nearly as popular as the other main girls here and on reddit at least (not sure about patreon). Hell Quinn, a supposed side girl gets way better moments.
But, then why are you going to put the least favorite of all (that's what is perceived from the amount of people who hate Maya here, in patreon, in discord, in reddit, etc) in the highest tier? or in that tier Maya is very popular or DPC has a preference for Maya to place her so high?
If my perception is correct, I would put Jill in tier 30, I would get more money.
I would have to check in previews of previous cycles to see if it is a constant or just a coincidence.