#1 He created his own character
Normally, the process in WWE is the creative team gives a character to a Superstar, and the rest is up to them to fill in the blanks. Bray Wyatt, however, is one of the few Superstars in the company who came up with his own character.
Wyatt's previous gimmick - the evil cult leader of The Wyatt Family - was his genius creation, and it was based on Charles Manson (an American criminal and cult leader), Waylon Mercy (former WWE Superstar), and Max Cady (a portrayed by Robert De Niro in a thriller movie Cape Fear 1991).
A former WWE writer just went after JBL for his comments HERE
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Initially, Wyatt received a lot of success with this character - including winning the WWE Championship - but later it was seemed as if it were destroying his career rather than building it. Eventually, he dumped this character after a hiatus and and introduced The Fiend gimmick - that also happens to be Wyatt's creation.