#5 Daniel Bryan
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There's no denying that a large proportion of the WWE Universe consider Daniel Bryan as the greatest WWE Superstar of all time due to his humane character and in-ring versatility.
While The Beard attained tremendous success in the company very organically, the repercussions of that success were brutal and unforgiving.
Daniel Bryan's quickness cost him a lot, as the former WWE Champion suffered multiple concussions and neck injuries that coerced the company to pull the plug on him.
His WWE Championship and Intercontinental Championship reigns were unfortunate, and cost Bryan a lot as far as his in-ring career and direction was concerned.
Despite announcing his retirement, the Yes! Man has returned to the squared circle after being medically cleared to compete, but there's no denying that he might never reach that ultimate goal of headlining WrestleMania once again.