All AES and ChaCha20-Poly1305 ciphers supported ordered from strong to weak. This choice of ciphersuites should satisfy most normal needs. For otherwise strong ciphers we make little distinction between AES128 and AES256, and list each but the weakest of the AES128 ciphers ahead of the corresponding AES256 ciphers.
AEAD ciphers with equivalent security properties are ordered based on CPU hardware-acceleration support. If this dynamic runtime behavior is not desired, use ciphersuite_default_det instead.