The ranked selection is finally getting to a good place but a few small changes would make it better:
Ranked FFA - Slayer Only. King of the Hill really does not play well in the ranked ffa environment. Put the mode in rumble pit instead.
Ranked Doubles - Add CtF, Oddball and King of the Hill to this playlist.
Add a rotational ranked playlist (maybe every two weeks or every month it changes?): 4v4 Attrition, 2v2 Dodgeball, 8 Player FFA Snipers (S7s Only), 4v4 Team Snipers (S7s Only), 4v4 Tactical Slayer (BRs), etc.