Tahmon

All that sexual tension when Amon took Tahno's bending away.

Oh man everybody in the arena could feel it.

And the sexual tension when Tahno told Korra to get Amon for him. Obviously, he's so attracted to Amon's sexy voice that he wants the Uh-vatar to re-unite them.

Amon's plan to rid the world of bending is just his way of getting the attention of Tahno, the man whose sexy voice he has lusted after his whole life.

The only man whose sexy voice can compete with his. Amon was just floored that any voice could out-sex his voice, and it captivated him immediately.

And from that moment on, it was destiny.

Yep. And obviously he's super jelly of Korra because Tahno and his sexy voice offered to give her private lessons.
But no. Amon will get those private lessons. Even if it requires him to destroy all benders.