Huh, I didn't think Kieran was that popular, nor that Rika would only manage 3rd.
Kieran at least has a growth arc, was a center character of the DLCs and was an actual challenging boss.
I'm more confused at Carmine since she's just obnoxious with her "I let you win" attitude with her lv60 Poochyena and she barely contributed to the plots.