User blog comment:Detective SkullWolf/SFW Winter Awards 2018 (Not Late at All)/@comment-32712012-20180224122359/@comment-4988763-20180226021645

From what I have noticed, how that category was voted during previous years is usually based on whether a character's powers did not break one's willing suspension of disbelief.

In order words, if a character's powers are interesting, well-written, reasonably balanced, and their level of power makes sense in the context of their universe, then people upvote since readers can overlook some nonsensical aspects and appreciate the character nonetheless.

In contrast, a powerful character without weaknesses, especially if it is not justified or thoroughly explained anywhere, is always downvoted for that same reason.