#2 Goldberg
Wait, what? Goldberg again? Yes. Only this time, it will work. Let us look at the facts for a minute.
The sole purpose of Goldberg beating The Fiend to win the Universal Championship is to transition the belt over to Roman Reigns at WrestleMania, making it a necessity for WWE. Also, The Fiend is all about gaining retribution over those who have wronged him.
Add the two together, and WWE can very easily right this wrong later this year. Without the anchor of the Universal Championship holding him back, Bray Wyatt can go after whoever he wants. And now that he has faced Goldberg before, the issue is there.
The Fiend can 'heal' himself by defeating the WWE Hall of Famer at Crown Jewel, or whatever the next Saudi Arabia show is. Goldberg will not be the Champion then, neither will Wyatt, presumably.
So one can only assume that the young Superstar will get his win back against the old part-timer. It would continue the evolution of the Fiend character, going after someone who defeated him, instead of someone who defeated his previous form.