#4 Dolph Ziggler
Dolph Ziggler is a two-time World Heavyweight Champion and a five-time Intercontinental Champion. He is, therefore, a pretty accomplished wrestler but has never really been given credit for all that he has accomplished inside the squared circle.
Ziggler returned at the Royal Rumble on January 28th as the surprise number 30 entrant in the men's Royal Rumble match. After eliminating Goldust, however, Ziggler was eliminated by Finn Bálor. He is currently scheduled to compete in a fatal five-way for the WWE Championship at Fastlane. AJ Styles is widely expected to win this match to go on and face the winner of the 2018 Royal Rumble, Shinsuke Nakamura.
Rey Mysterio and Dolph Ziggler had a great opening match at the 2009 SummerSlam PPV where Mysterio successfully defended the Intercontinental Championship. The two had very good chemistry and their feud for the Intercontinental Championship was an interesting one. This feud could be re-ignited if Mysterio indeed makes his much-anticipated return to WWE.