#3 Seth Rollins (Benefited in 2018)

After Seth Rollins finally slayed the King of Kings, Triple H at Wrestlemania 33, it looked like he might be catapulted straight into the Universal Title picture. This wasn't the case however, as Rollins ended up reforming his team with Dean Ambrose by the Summer.
Rollins then spent the remaining part of the year as a tag-team player. The Shield was reformed at one point too but the reunion was plagued by injuries. In December, Dean Ambrose ended up getting injured. Rollins was then joined by Jason Jordan.
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Like Ambrose, Jordan was sidelined with an injury too. This led to Seth Rollins becoming a singles Superstar once again. He ended up qualifying for the Elimination Chamber match, lasted over an hour in a stellar gauntlet match on RAW, and became a Grand Slam Champion at Wrestlemania 34.
Things have only gotten better for the Kingslayer post-Wrestlemania. Seth Rollins now puts on amazing matches on a weekly basis and is one of the top Superstars of Raw, a status that he truly deserves.
He even admitted that Dean's injury helped his career. It has also been rumored that he will face Brock Lesnar for the Universal Title at Wrestlemania 35.