What is the most profitable crafting class?

[h0tNstilettos]

I decided to return to leveling crafting to get them all to 60 after getting all my gatherers to level 60. It's been a very long time since I crafted. Back then Goldsmithing and Weaving were the most profitable, followed by Armorsmithing and Blacksmithing. But I heard someone say Leatherworking is now the most profitable. Figured I would ask community rather than just 1 person. My plan is to either level them to 60 one at a time, or level them all simultaneously to 60 in 5 level intervals. If I go the 1 at a time route, I'd rather it be the most profitable one first.