Is Flamme #3 in the world for mages?

Yes I know Hero of the South is likely stronger.

But out of all the mages, Serie is #1. Demon King is likely #2 (demonkind hyper focused on magic and mana, so likely their king is the best mage with the most mana).

Do we think Flamme is 3? Was she really that strong? Stronger than Macht?