Board Thread:Questions and Answers/@comment-24098614-20181119031140/@comment-38400729-20190410175150

The rankings of the Level 5s' are based on their potential to 'Awaken' and reach Level 6.

We can't contemplate who is more powerful at all because each esper has different types of abilities which are useful for that particular work only.

For example:

Accelerator(Level 5, Rank 1 - Accelerator/Vector Manupulation) can change the vectors of all objects which has a specific magnitude and a direction of its movement but is entirely useless when trying to identify a bomb in a suitcase in a busy location. Here Konori Mii(Level 3 - Clairvoyance) can detect it easily and take proper measures without causing unnecessary panic. (No offence to Accelerator Fan Club... just stating the facts)