I voted for Zelda because she appears the most. Also, a sage is defined as having a lot of Wisdom. Zelda has the Triforce of Wisdom.

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"Let fear be cast into the hearts of our enemy.
Let them lose all hope and let their heart sink into the unending darkness.
Let them have no will to live.
Let them feel the power of the Sages of Despair!"

-The Sages of Despair Creed