#2 Kofi Kingston (Fallen)
One year ago, Kofi Kingston was heading into the biggest match of his WWE Championship reign, at SummerSlam. It was a full-circle moment for him, with Randy Orton being the main reason he lost his push 10 years ago. The rivalry between Kingston and Orton at SummerSlam was possibly the hottest at the time, even if it did lead to a disappointing non-finish.
The New Day member remained as the top guy on SmackDown for about two months after SummerSlam, soundly defeating Orton to end their storyline before getting squashed by Brock Lesnar in a matter of seconds on SmackDown's premiere on FOX. The following week, Kingston was back to his former self.
There was little to no reference to his WWE Championship defeat, as Kofi Kingston simply went back to being a jolly member of the New Day. He has won multiple SmackDown Tag Team Championships since then, but it is evidently a step down from being the WWE Champion.
Kingston is currently spending some time on the sidelines and has given Big E his blessing to go on a run as a singles star. It is hard to imagine that he was the top guy one year ago and hopefully, Big E's singles run can be more sustainable and memorable than Kofi Kingston's recent run with the gold.