Said: “Said” is the best word of attribution most of the time.  That’s because it has no connotations.  All other words of attribution carry some additional, usually editorial, meaning. They are appropriate only if that additional meaning is proper and accurate. Even “stated” carries some connotational baggage: It implies formality, something read from a prepared script. Try not to use the words “according to” when attributing something to a person. Reserve it for reference a to written reports and stories that have been published in other newspapers or magazines. Use the word “charged” in attribution only in the context of a formal legal action. Avoid words such as “added,” “mentioned” (which implies it was done “in passing” or as an afterthought) and the like.


Source: Attribution