#1: Should: Finn Balor

Despite some shaky booking since his call up to the main roster in the 2016 Brand Extension, Finn Balor has remained one of WWE's most popular stars.
Already making history, Balor is the current Intercontinental Champion, the longest reigning NXT Champion of all time, as well as the first ever Universal Champion.
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Impressive accolades for the Extraordinary Man, though they would all pale in comparison to if Balor ended the Undertaker's legendary career. If told right, the story could be a work of art, showing Balor's respect for the Deadman, though how he wouldn't hesitate to make history at the former WWE Champion's expense.
The Undertaker may be cited (amongst other monikers) as the Demon of Death Valley, but what use will that be if he steps in the ring with the Demon King?
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