Suas perguntas são, se eu estou lendo corretamente: Existe algum mago [na história] que é tão conhecedor da sabedoria quanto Antioquia Peverell, e você também quer saber se um mago poderoso, como Dumbledore, poderia criar um Varinha que é igual ou supera a Varinha dos Anciões?
Sim. Garrick Ollivander, de acordo com Pottermore (grifo nosso):
Mr Ollivander is arguably the finest maker of wands in the world, and many foreigners travel to London to purchase one of his wands in preference to those on offer in their native lands. Mr Ollivander grew up in the family business, in which he showed precocious talent. He had the ambition of improving upon the cores and wand woods hitherto used and from his earliest days conceived a single-minded, even fanatical, determination in his pursuit of the ideal wand.
e também de Pottermore:
While there was initially substantial resistance to this revolutionary way of crafting wands, it swiftly became clear that Ollivander wands were infinitely superior to anything that had come before. His methods of locating wand woods and core substances marrying them together and matching them to ideal owners are all jealously guarded secrets that were coveted by rival wandmakers.
"Qualquer coisa que vem antes" incluiria a Varinha dos Anciões. Não foi excluído. Não há advertência de J.K. Rowling afirmando: "As varinhas de Ollivander eram infinitamente superiores a qualquer coisa que tivesse vindo antes ...
Então, sim, um feiticeiro ou feiticeiro muito prodigioso poderia - e, no caso do Sr. Olivaras - criou uma varinha melhor do que a Varinha dos Anciões. Ollivander sabe mais sobre fazer varinhas que Antioch Peverell.
Tomando a última palavra, Dumbledore define o registro direto do Elder Wand e sua suposta superioridade:
What must strike any intelligent witch or wizard on studying the so-called history of the Elder Wand is that every man who claims to have owned it has insisted that it is “unbeatable”, when the known facts of its passage through many owners’ hands demonstrate that not only has it been beaten hundreds of times, but that it also attracts trouble as Grumble the Grubby Goat attracted flies.
Ultimately, the quest for the Elder Wand merely supports an observation I have had occasion to make many times over the course of my long life: that humans have a knack of choosing precisely those things that are worst for them.
Tales of Beedle the Bard - Page 104 - Bloomsbury - The Tale of the Three Brothers - Albus Dumbledore's notes