#2 Bray Wyatt
Bray Wyatt and Roman Reigns have been huge rivals on the main roster. After colliding against each other as part of The Wyatt Family and The Shield respectively, these two have also defeated each other multiple times in a singles match.
Bray Wyatt has pinned Roman Reigns in matches at Battleground 2015 and Survivor Series 2016.
Bray also has a huge history with the leader of Cenation, whom he had a long rivalry in 2014, including a match at WrestleMania 30. Bray's biggest win over Cena came at the Elimination Chamber PPV, where he pinned Cena clean with a Sister Abigail and then went on to win his first WWE Championship by pinning AJ Styles as well. This loss also marked the end of Cena's record 16th World Title reign.
Bray Wyatt then went on to pin Cena again in a rematch on the SmackDown after the Elimination Chamber.