choice sequence - which one makes sense?

Smith has a whole translation pattern regarding a style of literature.

Smith's preference of the translation method is A first, (if A not applicable) then B, (if B not applicalbe either) then C.

Then let's focus on a definite aspect of the qualities of method A, B and C. On this regard, we have A > B > C.

I want to know which one expresses the above idea:

1. Smith’s choice sequence of translation methods
2. Smith’s choosing sequence of translation methods
3. Smith’s choosing preferences of translation methods
4. Smith’s choice preferences of translation methods
5. Smith’s choice of translation methods

                                         corresponds to the decrease of some attribute.

Looking forward to your answers. And many thanks in advance! :)