I think that less viable sets should go below the more viable ones. That's just me though.
(Offensive Dragon Dance: A+)
(Special Attacker: A+)
(Support: A+)
(Defensive Dragon Dance: A)
Azumarill
(Choice Band: A+)
(Belly Drum: A+)
(Assault Vest: A-)
(Swords Dance: A+)
(Pursuit Trapper: A+)
(Assault Vest: A-)
(Dragon Dance A+)
(Double Dance A) SD / Tailwind and Dragon Dance / SD + 2 attacks encompasses both of these
These are really the only two relevant categories you should have honestly. Yes 3 attacks / DDance is put in the Dragon Dance section for its additional coverage to break down traditional checks like M-Diancie and Tyranitar with the 3rd coverage move along side STAB. Other sets are basically moot in the meta right now.
(Calm Mind: A+)
(Support: A+) This includes SR, Thunder Wave, and Cleric
(Tank: A) Life Orb sets and 3 attack sets
(All-Out Attacker: A+)
(Rock Polish: A+)
(Calm Mind: A-)
(AoA: A+)
(Sub-Split Attacker: A+)
(Stall-breaker: A-)
(Specially Defensive: A+)
(Defensive: A)
(Sub DDance: A+)
(3 attacks / DDance: A)
(Fast Support: A+)
(Offensive: A+)
(Specially Defensive: A)
(Scarf: A-)
(Choice Scarf: A+)
(Pivot: A+) Offensive and Defensive Pivot Role consolidated
(Double Dance: A) I bumped this to A. A- is underselling it tremendously.
(AoA: A+) Includes Roost / support move + 3 attacks
(Calm Mind: A+)
(Offensive Defog: A+) Includes 2 attack + 2 utility moves or 3 attacks + defog
(AoA: A+) This includes 3 attack / support move sets
(Substitute Attacker: A) Sub / Encore primarily
(Double Dance: A+) Lol why was this "A". This includes 2 attacks / Slack Off / CM as well
(Offensive Tank: A-) 3 attacks / Slack Off
(CroBro: B+)
(Defensive: A-) Remove this. Use regular Slowbro if using its defensive set as a stand alone set.
(Offensive Swords Dance: A+)
(Specially Defensive: A)
(Choice Band: B+)
(Utility: A+)
(Calm Mind: A)
(Prankster Attacker: A+)
(Defiant Attacker: A)