I'm wondering what the etiquette is for suggesting that a user accept a different answer to their question.
A recent example: shortly after the OP posted the question, an answer was posted and quickly accepted. The answer was technically correct, but was short and low-quality. 45 minutes later another answer was posted, which was lengthy, thoroughly explained the answer to the question, and was just an all-around good answer. The accepted answer has only 1 upvote, and the other answer 5. So clearly there is community consensus regarding which is the better answer; it is not only my opinion driving this question. The problem is that, even though the better answer has more upvotes, it will never rise above the accepted answer when being displayed.
So my question is this: I would like to comment on the question and suggest that the OP change their accepted answer, as the other answer is far superior and I would prefer visitors to the site view excellent content to poor. It is of course their choice, and I would word the suggestion politely, but I'm not sure if it is proper etiquette to advise a user on which answer I think should be accepted. In this case this was actually the OP's first question on the site, which adds another layer of complexity, but I think the etiquette should probably be the same regardless. So, can anyone please advise me on the SE guidelines for such situations? Can I politely prod the OP, or do I need to just leave it alone? (To clarify, none of the answers in question are mine.)
I attempted to find an answer to this question before posting it; the closest I came was this, which is related but not a duplicate.