The "Connected Discourses on Collectedness" contains discourses dealing with the meditative skills required to perfect jhānas. Each discourse describes a meditator who is skilled in some aspects, but not in others, and holds the one skilled in all aspects to be the best.
Jhānasaṁyutta - Connected Discourses on Collectedness (jhāna)
The Buddha describes the four types of meditators based on their skill in collectedness and in attainment based on collectedness.
The Buddha describes the four types of meditators based on their skill in collectedness and in the continuity of collectedness.
The Buddha describes the four types of meditators based on their skill in collectedness and in the emergence from collectedness.
The Buddha describes the four types of meditators based on their skill in collectedness and in the flexibility of collectedness.
The Buddha describes the four types of meditators based on their skill in collectedness and in the support for collectedness.