[elbenprincess]

It seems to me you main argument is that he is decended from Melian (so would Elwing and Dior more powerful than Galadriel too? I seriously doubt that) and teh passage, which meaning is not very clear and debatable. But he doesn´t show some deeds so one could assume that he has more power, Galadriel makes the more magical impression in Lotr. Galadriels home is next to the home of the enemy, while Elrond is hidden in a valley and not easy to find, nothing indicates that he uses the same magic Galadriel does to defend his home. He is shown to have control over the river, he is the best in healing, very wise and fought in a war, but sorry I see no evidence that supports your claim. Like I said, Galadriel did simarlar deeds with her destroying the walls of Dol Goldr and sending the mist, furthermore she gave the fellowship lembas, which was a magical deed to do and the phial, and from he phial I got the impression that this is not something everyone could do. Not to forget the mallon seed, there was some power in the dust and seed so that the shire was beautiful again.

Galadriel was able to see that Gandalf was alive, while for Elrond everything lies under a shadow, so she send Gwaihir to look for Gandalf, that shows that she even had some athority over the eagles, strange for someone being banned.

She wanted Gandalf to be the head of the council which she summoned, not Elrond, but it seems that she was the one who wanted that. Already at that early point she sensed that Saruman would betray them and so mistrusted him from the beginning.

I don´t think Elrond or Cirdan (even if he have him his ring) would have voted for Gandalf, because that would go against the wishes of the Valar, but Galadriel, like always did not care, and was proven right.

For me it is really impressive that she was able to see the potential evil in him, which the Valar couldn´t, save Varda, she seemingly sensed the same.

Not to forget the mirror of Galadriel. She was able to see the past, the presend and the future, that is a powerful tool. All that claims that she is inherntly more powerful than Elrond.

Actually there is no need in proving that, you just have to look what Tolkien wrote of her in his later days, like for example the equal of Feanor, greatest of the Eldar of Valinor and mightiest and greatest of the Eldar in the third age quote and Elrond, even if half-elven, is included in that, because he made the decission to belong to the elves.