Question: who is more powerful galadriel or celeborn?
Answer: Galadriel is much more powerful than Celeborn or Thranduil, as she was born in the Undying Lands and was tutored by the Valar and Maiar themselves. She was considered to be the one of the most powerful elves, if not the most powerful, in Valinor besides Fëanor (and incidentally they hated each other).