Você poderia tecnicamente dizer que Aro é mais poderoso que Edward, mas na verdade eles não estão realmente no mesmo nível, pois ambos têm suas limitações e vantagens. Eu concordo com a outra resposta sobre isso.
Edward pode ler mentes, mas não memórias. Seu poder é generalizado, o que significa que pode tocar muitas pessoas de uma só vez. Além disso, ele não precisa se aproximar de você, enquanto ele provavelmente tem um alcance que ele não precisa estar muito perto de seu alvo.
Aro- pode ler mentes e memórias, mas apenas a um toque, o que significa que ele tem que tocar a pessoa para utilizar seu poder. Mas seu poder, seu poder, pode ler suas memórias também, então é equilibrado.
Lembre-se também que Aro sabe que seu poder não é onipotente, porque ele quer que Edward e Alice façam parte de sua equipe.
Do poder da Aro da wikia -
shows the gift of tactile telepathy, being capable of reading someone's thoughts and memories with a single touch
O poder de Edward , conforme explicado pela wikia -
Edward Cullen (born Edward Anthony Masen, Jr., on June 20, 1901 in Chicago, Illinois) is a telepathic vampire
Além disso, leia este post da Wikipédia explicando seus poderes.
Edward -
Telepathy: Telepathy Edward-mindreading-1011 Edward reading Bella's mind. "I can read every mind in this room. Apart from yours." ―Edward to Bella on his gift
Edward possui o presente para
read the thoughts of those around him. His gift is different from Aro's, which is limited by his need to touch the target and can access every thought a person has ever had. Aro is intrigued by Edward's power because he can read people's thoughts from a distance and what is going through their mind at that moment, and wishes to make him part of the Volturi guard. However, Edward has no interest of belonging to any authority.
Edward's power seemingly comes from his dormant ability to read people as a human, which became a supernatural talent when he became a vampire. He can hear all "voices" in close proximity with him, but has learned to block out the ones he is uninterested in by focusing on one voice or something in particular. Edward mentions that his ability is like being in a room where everyone is talking at once. He can tune out the "voices" so that it's just a low buzzing in the background.
The closer and more familiar he is to a person, the farther away he can reach that person's mind when he wants to, but can only keep track of them within a few miles. He mentions in Twilight that he can use it to dismiss people who feel attraction toward him and his family. He can also telepathically experience Alice's visions and keep track of a shape-shifter's telepathic link to his pack when he is within range. However, Bella Swan is the first exception to his gift as she is shielded from psychic powers, which is part of what made him curious about her when they first met.
Agora os poderes e habilidades de Aro .
Tactile telepathy Main article: Tactile telepathy Aro reading Alice's mind. "You see, I share some of your brother's talent, only I am limited in a way that he is not." "And also exponentially more powerful." ―Aro and Edward on his gift.
"Aro possesses the gift oftactile telepathy", an ability to read people's minds; he can reach far more deeply into a person's mind than Edward Cullen, because he is capable of reading every thought, feeling and memory a person has ever had in the past. This power works very effectively in gathering information and looking into thoughts that his subjects may want to hide. It is, however, limited by his need to touch the subject in order for him to access that mind. Because of this power, he can learn any visitor's past and intentions of their visit. When interrogating a criminal, he uses his power to examine the guilty party's mind and see the proof they present. It has also happened on occasion that he discovers individuals with intriguing capabilities by seeing them through someone else's memories, such as Jane and Alec, Bella, Benjamin, Kate, Zafrina and Alice.**
By reading Edward's mind, he can also access any mind Edward has ever read. And like Edward, he can access Alice's mind and experience the visions that she'd had.
Since his power is mental-based, it can be blocked by Bella's power to shield, something she has been able to do since she was human, which piqued Aro's interest.
Aro só pode fazer telepatia tátil que torna seu poder mais strong, mas também limita como ele pode usá-lo. Edwards é menos invasivo, apenas memórias na maior parte do tempo, mas é difundido.
Eu discordo dos comentários, mas não completamente, a série pode não ser bem pesquisada, mas ela fez o dever de casa com os poderes de Edwards e Aro, já que eles são um pouco diferentes.
Os qoutes da wikia que eu consegui eram canon, já que eu lembro que essas coisas estavam nos livros e filmes, mas você ainda deveria tentar reler as partes no eclipse (eu acho que é o livro) se você não confia na wikia . O texto em negrito era onde eu colocava em negrito as coisas que eu achava que eram realmente pertinentes.