#2 Rusev

Rusev with his wife-cum-manager Lana are crazy over among fans on SmackDown Live, and the recent 'Rusev Day' gimmick including the duo and Aiden English was instrumental in putting Rusev over.
However, the recent feud between Aiden and Rusev came to an end when 'The Bulgarian Brute' defeated English clean two weeks ago on SmackDown Live. Thus, slowly and steadily WWE Creative are having him gather some momentum.
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Even though he went on to lose his match against Shinsuke Nakamura for the United States Championship in the kick-off show at Crown Jewel (which in-arguably hindered his momentum), rumour has it that he may go on a feud with Nakamura for the championship after Survivor Series.
A huge singles push for Rusev is long overdue and highly anticipated by fans. And right now it seems that the fans may finally get what they are craving for.