#1. The Undertaker

The greatest character in wrestling history, The Undertaker has been digging holes and claiming souls ever since his debut at the 1990 Survivor Series.
Winning seven World Championships, as well as holding the record for most Pay per view victories, The Deadman has done everything there is to do in WWE.
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But for the past decade or so, it's clear that he has slowed down, and despite his demonic persona, it's hard for the WWE Universe to look past the fact that the Deadman is old, competing in just a few matches a year.
If The Undertaker was to retire in 2019, he would easily be the headliner for either the 2019 or 2020 Hall of Fame and, if he appeared out of character, would no doubt entertain the crowds for hours with stories from his epic career.