Wikipedia:Use of non-free content survey/5
Fair use rationales
Description pages of all images used under existing policies of non-free content must contain an individualized rationale justifying fair use for each and every page on which it is to be used. Such rationales are a suggestion of how a legal defense of fair use might be made, but there is no legal requirement to preemptively explain why something may be fair use.
In your opinion, the best policy is: