I have noticed that those who subscribe to the myth of one True way of doing a song invariably think that the one True way is their own preferred way.
Their own preferred way is usually the first version they ever heard.
Re Jack's point about Dylan,I was reading an interview the other day with a Guitarist who,as a consequence of misreading the sheet music,had started off playing "Love Minus Zero" in 3/4 time,decided he preferred it that way & chose to always do it that way.
If anybody ever objected to that he didn't say.
Another trend related to publication "proofs" I have noticed recently is a tendency on the 'Net,including 'round these parts on occasion,to implicitly attribute infallibility to Wikipedia.
It ain't necessarily so.