#1 Kane
When Kane made his WWE debut in 1997, fans were legitimately terrified of his monstrous presence. He was billed as the younger half-brother of The Undertaker, The Big Red Machine quickly jumped right into the main event scene.
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However, as time went on, the character evolved and went through some rather significant changes.
After not capturing any major title for several years, he floated around in the mid-card and teamed up with Rob Van Dam for most of 2003. He then lost a title match against Triple H on RAW in 2003, and Kane was forced to unmask after the match in front of millions of people.
Since then, Kane has been used as a stepping stone either to put over younger talent or make other contemporaries look dominant--especially with his corporate gimmick which saw him lose most of his matches.
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