Why are the Vanyar higher than the Noldor?

[Voralphion]

Because we know of several powerful Noldor fighting against maiar and Morgoth themselves!

I.e., Galadriel reading and knowing Sauron's thoughts, etc.

How do you know that Galadriel's wisdom came from being a Noldor. She was equally a Vanyar as much as a Noldor so her wisdom could have come from being a Vanyar.
Also, Fingolfin who personally fought with Morgoth was half Vanyar as well as half Noldor so who's to say what kindred of elves contributes what to the great Noldor.