Cult of Personality is better as a song.
Cult of Personality might fit the character better. I'm not actually convinced despite what Punk says-- they both kinda fit and CoP is kinda... too laid back for Punk's attitude I think.
But This Fire Burns is one of the best wrestling themes out there as a wrestling theme (largely because it gets you pumped up so well). And Cult doesn't really work as one.
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I tried to have a fierce rivalry with SuperNiceDog, but he made me look worse than a GameFAQs Contest!