Nonetheless, Michaels attempted to politically undermine Johnson by lobbying to McMahon that he be replaced by Hunter in the main event at WrestleMania XV.
^ I have never heard this one before.
Always, the story I heard is that Shawn Michaels wanted Mankind inserted into the 'Mania match to make it a triple threat. But Vince went with Austin v. Rock.
I've never heard anything of Michaels' wanting HHH in the main event.
The only indication I've ever saw of an animosity between Rock and Michaels is the interview when Rock said, "I've never ever wanted to wrestle him [Michaels]." Other than that, everything is speculation.
Shame we never got Rock vs Shawn Michaels. It would have been great feud if done in 2003 when both were active wrestlers.