Ring of fire, Ring of Air, Ring of ?

[The Might]

I believe that this other discussion going may need a thread of its own as it is going quite off-topic, although interesting to read.

So yeah, back to the idea with the elements.
You say that not considering the other Rings in connection to earth and aether makes the scheme less perfect, but then again Vilya's greater power already makes the scheme imperfect, something strange when talking about classical elements in perfect balance.

It just doesn't add up for me, I have more reason to think against an intended balance of elements within the Rings of Power.