Don't get me wrong, MJ was a Supremely talented performer and I believe with all my heart that he was one of the most misunderstood people ever, but no-one can ever do again what Elvis did because the world is different now ie: Racial Segregation in USA has gone, so the bringing together of blacks and whites which no-one had done before as successfully as Elvis, can't be done again.
Elvis was Totally original and had original dance moves which is why the World was so shocked by him. But MJ's dance moves were inspired by Astaire, James Brown, Elvis, Jeffrey Daniels, Electric Boogaloo and Cooley Jaxson.
But MJ never gave most of these people the proper credit for teaching him to dance, which is a bit disappointing as Elvis was always so Generous with giving credit to those that inspired him like Fats Domino etc.
Also the History Tour was 95% mimed, Elvis never mimed at all in his live concerts. Even the Dangerous Tour was about 50% mimed.
Elvis' musical influence was greater than MJ's and so was his social influence.
MJ being MJ he revelled in the title "King Of Pop" but a true King is humble and Elvis was never comfortable when people called him KING and in fact would tell them Christ is the King. That is the difference between Elvis and MJ.
But having said that I am still a big MJ fan and was absolutely gutted when he passed away.
The way I look at it, Elvis and MJ are the only 2 Musical Legends that have ever been or will be...