I answered Trying to find an episode of “Batman Beyond”, and my answer was accepted. However, the slightly (14 seconds) earlier answer was somewhat better and later was edited to be much better.
I left a comment suggesting the asker transfer the acceptance, but the user was last seen 36 minutes after the answers were posted (so the user is unlikely to return).
I have considered using a bounty to transfer reputation to the provider of the better answer (which has been popularly recognized as better--a score of 7 vs. 4), but this would not undo the sorting order.
Deleting my answer would give the good answer proper prominence and would not remove any significant information, but such would remove an acceptance (though the question would still be "answered", having a 1+ scored answer). Deleting would also cost less than offering a bounty (minimum 100 reputation since I have an answer--though I could do both).