So, is this right?

Weapon
1. Grand Company / Crafted - First level 50 weapon you want to get
2. Primal - Ifirit < Titan < Garuda
3. Relic - Requires a long quest chain and for you to beat all three HM Primals
4. Relic+1 - costs Allagan Tombstones of Mythology
5. Allagan - drops from Coil of Bahamut

Armour
1. Artifact (blue Class gear) / Grand Company
2. Amdapor Keep drops
3. Darklight - costs Allagan Tombstones of Philosphy
4. Artifact+1 - costs Allagan Tombstones of Mythology
5. Allagan - drops from Coil of Bahamut