Phantom doesn’t, I don’t think. It’s kind of a gray area. Last I checked the topic I made about the lost contest winner, there was significant evidence that the found entry was not Phantom, and was perhaps one of the other two “lost winners”.
But even if we could know for sure that this entry is not Phantom, I still don’t think Phantom should have a canon contest; Phantom’s appearance should be whatever won the Dark Hunter contest, even if that can never be found.
I think there’s an argument for Kingdom Tanma; he contributed to the story, and had a speaking role.
Shadow Takanuva could also fit the criteria, it just wouldn’t be a very good contest; the Shadow Takanuva look like Prime Takanuva, just with different colours.
Also, Kabrua has been heavily discussed for the second list.
The Morbuzakh is unlikely to have a canon contest, since we already know what it looks like:
