First Coil of Bahamut: Tank, DRG/MNK/BRD, BLM/WHM/SMN/SCH
Second Coil of Bahamut: Tank, DRG/MNK, BRD/BLM/SMN, WHM/SCH, BLM/SMN
Final Coil of Bahamut: Tank, DRG, MNK/NIN, BRD, WHM/SCH/BLM/SMN
Crystal Tower: Tank, MNK, DRG/BRD, WHM/SCH/BLM/SMN
Sycrus Tower: Tank, DRG/MNK, BRD, WHM/SCH/BLM/SMN *Thanks to Alahara for pointing out that the tank set is different from DRG/MNK! Updated 9:33 AM.
World of Darkness: Tank, BRD, BLM/SMN, DRG, MNK/NIN, BLM/WHM/SCH/SMN
Void Ark: Tank, DRG, BRD/NIN, MNK, BLM/SMN/WHM/SCH*this is othe only one I'm salty about. The DRG's really does look extremely similar to the Tank one, but it has more effort than the usual lazy reskins so I'll give people the benefit of the doubt and call it unique.
Alexander of the Father: Tank, MNKDRG, BRD/NIN, WHM/SCH/BLM/SMN

Uniqe Raid Sets:
Tank: 8
BRD: 3
DRG: 3
MNK: 2
NIN: 0, but expected - shortest lifespan of the 2.0 classes.
WHM/SCH: 1
BLM/SMN: 0


Now, time to do tomestones...
Darklight (Philosophy) : Tank, MNK/BRD, DRG, WHM/SCH/BLM/SMN
Mythology: All were unique. Not applicable.
Soldiery: Tank, DRG, MNK/BRD, BLM/SMN, WHM/SCH
Poetics: Tank, MNK/DRG, NIN/BRD, BLM/SMN, WHM/SCH
Law: Tank, MNK/DRG/NIN, BRD, WHM/SCH/BLM,SMN
Esoterics: All were unique. Not applicable.

Tomestone Gear:
Tank: 3
BRD: 1
DRG: 1
MNK: 0
NIN: 0
WHM/SCH: 2
BLM/SMN: 2

Total Uniques:
Tank: 11
BRD: 4
DRG: 4
WHM/SCH: 3
BLM/SMN: 1
MNK: 2
NIN: 0

By my eye, it looks like WHM/SCH has almost as many as DRG. The gap gets a little bit bigger next patch, mind you. So we'll see how it plays out. But by my eye, the roles that need unique gear the most right now?

NIN and MNK.

Conclusion?
Healers and casters, if they're gonna target someone, should look at Tanks, who get the most unique gear out of all classes (Nearly double) from Tomestone/Raid gear. Instead, they are whining and targetting dragoons as 'special snowflakes' who humerously as it turns out - is actually relatively close to the same amount of unique gear pre-3.2. And of course, they completely neglect the MNK/NIN's, who almost always wind up being palette swaps of one another even though they're two different sets. Even giving healers the benefits and not calling 'all casting/healing' gear the same, they are STILL in a better place than MNK's and NIN's.

*Edit: someone else can add 3.2 to the list if they want, but I added Alexander of the Father to the list because that is part of pre-3.2

Edit @8:35 PM; my girlfriend pointed out that the Second Coil set, the BRD is literally a reskin of the Caster set. Fixed.

This was information Eidolon posted in a thread i made nearly 3yrs ago about caster/healers getting identical gear this is up to the reveal of the primal set in HW.
I will go over and add the gear sets to this since then but i probably can put very safe money on those bottom 2 not budging so before asking for dragoons to have more unique stuff (Which tbf i would love every job to get unique armour all the time but ik it isn't feasible) let the other melees have more unique 1st and maybe rotate it around