>>716480574
Waterbending is objectively the strongest element because you get:
>Waterbending / hydrokinesis
>Icebending
>Plantbending
>Spiritbending
>Mudbending
>Mist / Steambending
>Bloodbending, which can take away other people's bending. Bloodbending is also literally unbeatable if you're not a bloodbender yourself or an avatar
Utterly insane lineup of skills.

The next strongest element is airbending
>Airbending / Aerokinesis
>Flight
>Rudementary Telekinesis since you can push and pull stuff towards you
>Astral Projections
>Rapid, high pressurized wind that can cut through wood, cars, and beasts. In the books, Yangchen apparently split a sea with this technique
>Can bend the air out of people's lungs to kill them