I like John Cena, not for his evident physical prowess, and obvious strength that has been displayed when lifting men physically bigger than him, but because he seems to be a genuinely nice person. Not only in terms of his charity work, but the respect that he showed to Edge (Adam Copeland) directly after Edge had been forced to retire from medical reasons. It went above the respect that all the rest of the WWE performers had already paid to him, and was a very touching moment.
Some of his WWE Matches
Cena vs Sheamus uploaded by WWE
Roman Reigns vs Cena Uploaded by WWE oficial
Cena confronts Jon Stewart uploaded by WWE
Cena and Orton vs Edge and Sheamus uploaded by WWE