foreword the only credentials I can give for my testing purpose is the hours I have put into the games.
Key
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SSS - Tier god needs nerf/adjustment (meta)
SS - very very good might be slightly OP (meta)
S - perfectly balance and playable the goal (meta)
A - Playable
B - needs buffs
C - needs thematic adjustments.
D/ or lower - needs massive adjustments.
Tanks
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PLD - S tier it is the only tank left the other three are glorified meat shields that dps
DRK - SS very good dps/meat shield
WAR - S tier holm is very powerful
GNB - SSS tier needs some major sustain nerfs or dmg nerfs it is too well design....
Healers
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SCH - A its doing kinda pathetic but still a healer
WHM - S tier very strong
AST - SSS tier needs adjustments it is too strong.
Melee
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Nin - S tier very good mobility and power
Monk - A tier, it is strong but there are better choices
Sam - SS tier the dmg is insane but not broken
Dragoon - S tier, SS tier with battle high
Range
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BRD - S tier feels good, plays well.
MCH - A tier it needs some slight potency buffs but it feels good.
DNC - was recently nerfed with that said SSS tier still because of the mobility and utility not necessarily DMG.
Casters
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BLM: SS tier, if you get battle high though SSS tier, and extreme battle high I would place this in the God-Tier might need a slight potency nerf but takes skill to play it so still on the fence.
RDM: A/S tier you need to be in melee to many times to be effective and the barrier is too weak if that gets buff we see potential they also need an instant cast chase spell.
SMN: B/A/S tier it is all over the place depending on the form depends on your kill power, you got some utility because healing down/dmg up but the potencies are just not there it plays very awkwardly... Wither also needs to not be a cone but rather just make it tri disaster.